Irresistible Congo Bars: The Ultimate Chewy Chocolate Chip Cookie Bars
Prepare yourself for a truly unforgettable dessert experience with these incredible Congo Bars. Imagine the most luscious, thick, and wonderfully gooey cookie bars you’ve ever encountered, brimming with two delightful types of chocolate and the satisfying crunch of walnuts. These aren’t just any cookie bars; they are the epitome of chewiness and melt-in-your-mouth goodness, akin to a super-sized, extra-indulgent chocolate chip cookie, but in a convenient bar form. The textural contrast between the soft, rich dough and the crunchy nuts elevates every bite to pure bliss.
Congo Bars are a timeless treat, perfect for any occasion. Whether enjoyed as a delightful afternoon snack with a cold glass of milk, or as a comforting dessert alongside a warm cup of coffee, they always hit the spot. If you’re captivated by the magic of these chewy chocolate chip cookie bars, I highly recommend exploring my equally decadent brookies (a perfect fusion of chocolate chip cookies and fudgy brownies) and the ever-popular magic cookie bars for your next baking adventure!

Table of Contents
- What Makes These Congo Bars So Good
- Why Are They Called Congo Bars?
- Essential Ingredients for Perfect Congo Bars
- Step-by-Step Guide to Making Congo Bars
- Expert Tips and Delicious Variations
- How to Store Your Congo Bars
- More Delightful Cookie Bar Recipes
- Congo Bars Full Recipe
Congo bars, often lovingly referred to as Congo squares, represent a classic American dessert that masterfully combines the best attributes of a cookie and a bar. They are distinctively dense, incredibly chewy, and generously packed with a rich medley of chocolate, nuts, and sometimes coconut. My specific recipe, while staying true to the beloved retro charm of these bars, opts to omit the coconut, focusing instead on amplifying everything else there is to adore. The result is a wonderfully soft, remarkably thick slab of blondie-style dough, studded with a harmonious blend of two kinds of melted chocolate, and an irresistible, crunchy texture from wholesome walnuts. This creates a truly comforting and satisfying dessert that appeals to all ages.
What Makes These Congo Bars So Good
These Congo Bars aren’t just good; they’re truly exceptional. Their popularity stems from a perfect combination of texture, flavor, and sheer ease of preparation. Let’s dive into what makes them a consistent crowd-pleaser and a personal favorite:
- Unforgettably Chewy and Richly Chocolatey: The primary appeal of these Congo bars lies in their remarkable texture and decadent flavor. Each bite delivers a deeply satisfying chewiness that’s characteristic of a perfectly baked cookie bar, coupled with a gooey center that just melts in your mouth. They’re generously loaded with chocolate chips, ensuring a burst of cocoa in every bite. This makes them absolutely delicious on their own, but if you’re looking to elevate the experience, serving them warm with a scoop of vanilla bean ice cream creates an irresistible sweet treat after any meal. The contrast of warm, gooey bar with cold, creamy ice cream is pure dessert magic.
- The Ultimate Party Dessert: Just like classic fudgy brownies and other beloved dessert bars, Congo bars are inherently designed for sharing. Their robust nature makes them easy to transport and serve, cutting into neat squares that are perfect for a crowd. I frequently bake them for potlucks, birthday parties, casual family gatherings, and even school bake sales, where they are always the first to disappear. A fantastic feature is the flexibility to easily omit the nuts, making them a safe and inclusive option for guests with nut allergies, without compromising on flavor or texture. They are universally loved by both children and adults, guaranteeing a hit every time.
- Effortless One-Bowl Preparation: The simplicity of this Congo bar recipe is truly one of its greatest strengths. Requiring just a handful of common pantry ingredients and the convenience of a single mixing bowl, whipping up a generous batch of these delicious bars couldn’t be more straightforward. The dough comes together in a matter of minutes, significantly reducing prep time and, perhaps even better, minimizing cleanup. This makes them an ideal choice for busy weeknights, last-minute cravings, or when you need a fantastic dessert without a fuss. It’s a testament to how easy homemade deliciousness can be.

The Curious Origin: Why Are They Called Congo Bars?
The naming of Congo bars is a delightful little culinary mystery, adding an intriguing layer to their rich history. While the exact origin remains unconfirmed, there are a couple of popular theories that have circulated over the years.
One prevalent belief suggests that these cookie bars derived their name from Congregational “Congo” churches across the United States. During the mid-20th century, community cookbooks, often compiled by church groups for fundraising or sharing beloved family recipes, were extremely popular. It’s thought that the recipe for these distinctive bars appeared frequently in these “Congo” church cookbooks, eventually leading to the association with the name. This theory speaks to the communal and comforting nature of the dessert, making it a staple at bake sales and potlucks.
Another theory connects the name to the Congo region in Africa, attributing it to the inclusion of an “exotic” ingredient – shredded coconut – which is sometimes added to traditional Congo bar recipes. While my particular recipe omits coconut to focus on the chocolate and nut profile, historically, some versions did include it. In times past, ingredients like coconut might have been considered exotic or unusual in certain Western culinary contexts, thus inspiring a name that evoked faraway lands. Regardless of which theory holds more truth, the deliciousness of these bars is undeniable, making their mysterious nomenclature all the more charming. It’s a wonderful example of how food traditions can develop intriguing backstories.

Essential Ingredients for Perfect Congo Bars
Creating these delightful Congo bars starts with gathering a few simple, everyday ingredients. The beauty of this recipe lies in its accessibility and the way these humble components combine to create something truly extraordinary. Below are some quick notes on the key ingredients for your bar recipe. For a precise, printable list with full measurements, be sure to check out the recipe card located at the bottom of this post.
- Butter: Whether you choose salted or unsalted butter, the most crucial aspect is to ensure it’s softened to room temperature. Softened butter creams beautifully with sugar, incorporating air and contributing to the light, chewy texture of the bars. If using unsalted, you might want to add a tiny pinch more salt to the recipe to balance the sweetness.
- Sugars: This recipe utilizes a powerful duo of sweeteners – both granulated sugar and light brown sugar. Granulated sugar provides foundational sweetness and helps with crispness at the edges, while light brown sugar is key for achieving that signature extra-chewy, moist texture and a deeper, molasses-rich flavor. This combination is precisely what gives these Congo bars their irresistible depth, much like in classic chocolate chip cookies.
- Eggs and Vanilla: These are essential binding agents and flavor enhancers. The eggs add structure and richness, while pure vanilla extract infuses the bars with a warm, aromatic sweetness that complements the chocolate perfectly. For best results, try to bring your eggs to room temperature before mixing, as this helps them emulsify more effectively with the butter and sugar, creating a smoother batter.
- Baking Soda: This leavening agent is critical for giving your Congo bars the perfect lift and tender crumb. It reacts with the acidic components (like brown sugar) to create carbon dioxide, resulting in a slightly airy yet dense texture. Always check the expiration date on your baking soda; old baking soda won’t provide the necessary rise, leading to flat, dense bars.
- Chocolate: My preferred combination for these bars is a blend of semisweet chocolate chips and milk chocolate chips. This pairing offers a delightful balance: the semisweet provides a rich, slightly bitter counterpoint, while the milk chocolate adds a creamy, sweeter note. However, feel free to get creative! You can use any type of chopped chocolate or chocolate chips you adore, including decadent dark chocolate, sweet white chocolate, or even a mix of all three for a multi-layered chocolate experience.
- Nuts: For that added crunch and nutty flavor, I typically opt for chopped walnuts. They offer a great earthy flavor and satisfying texture. However, the choice of nuts is completely up to your preference! Chopped pecans, hazelnuts, or even slivered almonds would be equally delicious. If you or your guests have nut allergies, or if you simply prefer your bars nut-free, feel free to skip them entirely; the bars will still be incredibly flavorful and chewy.
Step-by-Step Guide to Making Congo Bars
Crafting these wonderfully chewy homemade chocolate chip cookie bars is surprisingly simple, broken down into just a few easy steps. The entire process is designed for maximum flavor with minimal fuss. Follow along with these instructions, and remember to scroll down to the recipe card below for the full printable instructions and precise measurements.


- Prepare Your Pan and Oven: Before you even start mixing, preheat your oven to 350°F (175°C). Then, prepare a 13×9-inch baking pan. You can either grease it thoroughly with butter or non-stick spray, or, for easier removal and cleanup, line it with parchment paper, leaving an overhang on the sides. This ensures your beautiful bars won’t stick and can be lifted out effortlessly.
- Cream the Wet Ingredients: In a large mixing bowl, preferably using an electric mixer, begin by creaming together the softened butter with both the light brown sugar and granulated sugar. Beat them together on medium speed for about 2 minutes, or until the mixture becomes wonderfully light, fluffy, and pale in color. This step is crucial for incorporating air, which contributes to the bars’ tender texture. Once creamed, add the room temperature eggs and vanilla extract. Continue beating until these are thoroughly combined and fully incorporated into the sugar mixture, ensuring a smooth and homogenous base.
- Incorporate the Dry Ingredients: Now it’s time to introduce the dry components. Gradually add the all-purpose flour and baking soda to the wet mixture. Mix on low speed, or by hand with a spatula, just until the dry ingredients are barely incorporated and the dough starts to come together. Be careful not to overmix at this stage, as overworking the flour can lead to tough bars. Finally, gently fold in your chosen chocolate chips (semisweet and milk chocolate are recommended for a balanced flavor) and the chopped walnuts (if using) until they are evenly distributed throughout the thick, rich cookie dough.
- Bake to Golden Perfection: Once your dough is perfectly mixed, transfer it into the prepared 13×9-inch baking pan. Use a spatula to spread the dough evenly across the bottom of the pan, ensuring a consistent thickness. Place the pan in your preheated oven and bake for approximately 30-35 minutes. You’ll know they’re ready when the edges are beautifully set and lightly golden brown, while the center still appears slightly soft or “set but jiggly.” Remember, they will continue to firm up as they cool, so don’t overbake!

Expert Tips and Delicious Variations for Your Congo Bars
Achieving bakery-quality Congo bars at home is simple with a few key techniques and creative adaptations. These tips will help you perfect your batch every time, and the variations will inspire you to customize them to your heart’s content.
- Avoid Overmixing the Dough: This is perhaps the most crucial tip for tender, chewy bars. Once you add the dry ingredients (flour and baking soda) to the wet mixture, mix them together only until the dough *just* comes together and no streaks of flour remain. Overmixing develops the gluten in the flour excessively, which can result in bars that are tough, dense, and less enjoyable. A gentle hand and a watchful eye are all you need here.
- Do Not Overbake Your Bars: The secret to truly gooey and soft-baked Congo bars lies in pulling them out of the oven at precisely the right moment. The edges should appear set and lightly golden brown, but the very center might still look a tiny bit soft or slightly underdone. Don’t worry, this is exactly what you want! The residual heat of the pan will continue to cook the bars as they cool, allowing them to set up perfectly without becoming dry. If you leave them in for too long, they will become dry, crumbly, and lose their signature chewy texture. Trust your instincts and the visual cues!
- Elevate with Decadent Toppings: While Congo bars are utterly delicious plain, adding a simple topping can transform them into an even more impressive dessert. Consider drizzling the cooled bars with melted chocolate for an extra cocoa boost, a rich caramel sauce for a buttery sweet contrast, or a homemade chocolate fudge sauce. A sprinkle of sea salt after a chocolate or caramel drizzle can also enhance the flavors beautifully.
- Experiment with Different Add-Ins: The beauty of a base recipe like Congo bars is its versatility. Don’t feel limited to just semisweet and milk chocolate. Feel free to swap them out or add more! Dark chocolate chips will give a more intense, less sweet profile, while white chocolate chips add a creamy, sweet dimension. Beyond traditional chocolate, consider adding peanut butter chips for a nutty twist, butterscotch morsels for a nostalgic flavor, or even chopped toffee bits for an extra crunch and chewiness. You could also introduce dried fruits like cranberries or cherries for a touch of tartness and color. The possibilities are endless, allowing you to create your own signature Congo bar variation.
- Chill Before Cutting: For the cleanest cuts and to prevent the bars from crumbling, allow your Congo bars to cool completely in the pan on a wire rack before attempting to slice them. Chilling them in the refrigerator for 30 minutes to an hour can further firm up the chocolate and dough, making for perfectly neat squares.

How to Store Your Delicious Congo Bars
Proper storage is key to keeping your Congo bars fresh, chewy, and delicious for as long as possible. Whether you plan to enjoy them over a few days or save some for later, here’s how to best store them:
- On the Counter (Short-Term): For immediate enjoyment, these Congo bars store beautifully at room temperature. Once they have cooled completely and been cut into squares, arrange them in an airtight container. A cookie tin or a sealable plastic container works perfectly. Stored this way, they will remain wonderfully fresh, soft, and chewy for 3-4 days. To maintain their ideal texture, you can even place a slice of bread in the container with the bars; the bread will absorb any excess moisture, keeping the bars moist without drying out.
- Freezing (Long-Term): If you’ve made a large batch or want to prepare them in advance, Congo bars are excellent candidates for freezing. Once fully cooled and cut, place the bars in a single layer on a baking sheet and freeze for about 1-2 hours until solid. This prevents them from sticking together. Then, transfer the frozen bars to a freezer-safe airtight container or heavy-duty freezer bag, separating layers with parchment paper if stacking. They can be frozen for up to 3 months. To serve, simply thaw them at room temperature for a few hours, or warm them gently in the microwave for a few seconds for that fresh-out-of-the-oven gooeyness. This makes them a fantastic make-ahead treat!
More Delightful Cookie Bar Recipes to Explore
If you’re a fan of the ease and deliciousness of cookie bars, you’re in for a treat! Once you’ve mastered these fantastic Congo bars, be sure to try some of my other popular cookie bar recipes:
- S’mores Cookie Bars: All the campfire magic in a convenient bar.
- Sugar Cookie Bars: Soft, tender, and perfect for decorating for any holiday or celebration.
- Chocolate Chip Caramel Cookie Bars: A luxurious combination of classic chocolate chip and gooey caramel.
- Cookies and Cream Bars: A beloved flavor combination transformed into an easy-to-make bar.
- Oatmeal Chocolate Chip Bars: Wholesome oats meet rich chocolate chips for a comforting treat.

Congo Bars
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Ingredients
- 1 cup butter, softened
- 1 ¼ cup light brown sugar
- ½ cup granulated sugar
- 2 whole large eggs
- 2 teaspoons vanilla extract
- 3 cups all-purpose flour
- 1 teaspoon baking soda
- 1 ½ cups semi-sweet chocolate
- 1 cup milk chocolate chips
- 1 cup pecans, or walnuts, optional
Instructions
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Preheat oven to 350º F. Grease or line a 13×9 inch baking pan with parchment paper.
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In a mixer cream together butter and both sugars for about 2 minutes, until light and fluffy.1 cup butter, 1 ¼ cup light brown sugar, ½ cup granulated sugar
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Beat in egg and vanilla until very well incorporated.2 whole large eggs, 2 teaspoons vanilla extract
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Add the flour, and baking soda and mix until it just forms a dough.3 cups all-purpose flour, 1 teaspoon baking soda
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Add both chocolate chips and walnuts and mix until they are evenly incorporated.1 ½ cups semi-sweet chocolate, 1 cup milk chocolate chips, 1 cup pecans
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Spread the batter into an even layer and bake for 30-35 minutes until the edges are set and the bars are lightly golden brown.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Additional Info
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