Congo Bars

 

Why You’ll Love These Congo Bars

Easy to make: No need to shape individual cookies. Spread the dough in a pan, bake, and slice.

Soft and chewy texture: Brown sugar and the slightly gooey center help create tender bars with deliciously chewy bites.

Loaded with chocolate: Semisweet chocolate chunks and milk chocolate chips provide plenty of chocolate in every serving.

Perfect for sharing: A 9×13-inch baking dish makes a generous batch for family and friends.

Great for make-ahead desserts: Bake them in advance and store them for an easy treat whenever a chocolate craving strikes.

Ingredients for Congo Bars

You’ll need a handful of everyday baking ingredients to make these rich chocolate-filled bars.

Butter: Use 1 cup, or 2 sticks, of butter at room temperature. Softened butter blends more easily with the brown sugar.

Brown sugar: Two cups of packed brown sugar provide sweetness, moisture, and a rich caramel-like flavor.

Eggs: Three large eggs at room temperature help bind the ingredients together and create the bars’ structure.

Vanilla extract: One tablespoon adds warmth and enhances the flavor of the chocolate.

Kosher salt: One teaspoon balances the sweetness and brings out the other flavors.

Baking powder: Two teaspoons help the bars rise and maintain a tender texture.

All-purpose flour: Two and a half cups form the base of the dough and give the bars their structure.

Semisweet chocolate chunks: One and a half cups provide rich chocolate flavor and larger pockets of melted chocolate.

Milk chocolate chips: One cup adds extra sweetness and a creamy chocolate taste.

How to Make Congo Bars

Step 1: Prepare the Baking Pan

Preheat your oven to 350°F. Line a 9×13-inch baking dish with parchment paper, then grease it with nonstick cooking spray. Leave a little parchment overhang if possible to make removing the bars easier.

Step 2: Beat the Butter and Brown Sugar

Place the room-temperature butter and packed brown sugar in a large mixing bowl. Using an electric mixer on medium speed, beat for about 2 minutes, until the mixture is well combined and creamy.

Step 3: Add the Eggs and Flavorings

Add the eggs, vanilla extract, kosher salt, and baking powder. Mix until everything is combined, scraping down the sides of the bowl as needed to ensure the ingredients are evenly incorporated.

Step 4: Mix in the Flour

Reduce the mixer speed to low and gradually add the all-purpose flour. Mix just until the flour is incorporated. Avoid overmixing, which can make the finished bars tougher.

Step 5: Fold in the Chocolate

Use a spatula to fold the semisweet chocolate chunks and milk chocolate chips into the dough. Distribute them evenly so every bar has plenty of chocolate.

Step 6: Spread the Dough in the Pan

Transfer the dough to the prepared baking dish. Use a rubber spatula to spread it evenly into the corners and across the surface.

Step 7: Bake Until Golden

Bake for approximately 30 minutes, until the edges are set. The center should still look slightly underbaked and gooey when you remove the pan from the oven.

Avoid waiting until the center looks completely firm, as the bars will continue to set as they cool.

Step 8: Cool and Slice

Allow the bars to cool in the pan for 5 minutes, then carefully remove them using the parchment paper. Let them cool completely before slicing into squares and serving.

For cleaner cuts, use a sharp knife and wipe the blade between slices.

Tips for the Best Congo Bars

Use room-temperature ingredients. Softened butter and room-temperature eggs mix more evenly, helping create a consistent dough.

Measure the flour carefully. Too much flour can make the bars dry and dense. Spoon the flour into your measuring cup and level it off rather than packing it down.

Do not overmix the dough. Once the flour is incorporated, stop mixing. This helps keep the bars tender.

Watch the baking time. The edges should be set while the middle remains slightly soft. Oven temperatures can vary, so begin checking around the 25-minute mark.

Let the bars cool before cutting. Cooling helps the chocolate and center set, making the bars easier to slice without falling apart.

Use parchment paper. It makes removing the entire batch from the baking dish much easier and helps prevent sticking.

Variations to Try

Add chopped nuts: Fold in chopped pecans or walnuts for extra crunch and flavor.

Use different chocolate: Replace some or all of the chocolate chunks with additional chocolate chips, dark chocolate pieces, or your favorite baking chocolate.

Add a little crunch: Sprinkle a small amount of flaky salt over the top before baking for a sweet-and-salty finish.

Make smaller portions: Cut the cooled bars into smaller squares for dessert trays, parties, or lunchbox treats.

Keep any additions moderate so the dough retains its structure and bakes evenly.

How to Store Congo Bars

At room temperature: Store completely cooled bars in an airtight container for up to 4 days. Keep them in a cool, dry place.

In the refrigerator: If you prefer a firmer texture, refrigerate the bars in an airtight container. Allow them to sit at room temperature briefly before serving if you want them softer.

In the freezer: Arrange fully cooled bars in a freezer-safe container, separating layers with parchment paper. Freeze for up to 3 months for best quality. Thaw at room temperature before serving.

Frequently Asked Questions

Why are my Congo Bars gooey in the middle?

These bars are intended to have a soft, slightly gooey center when they come out of the oven. The center will continue to set as the bars cool. If it appears completely raw rather than soft, it may need additional baking time.

Can I use only one type of chocolate?

Yes. You can use only semisweet chocolate chips, milk chocolate chips, or another chocolate variety you enjoy. Using both semisweet chunks and milk chocolate chips gives this recipe its combination of rich and sweet chocolate flavors.

Do I need to chill the dough?

This recipe does not require chilling. Once the dough is mixed and spread into the prepared baking dish, it is ready to bake.

How do I know when the bars are done?

Look for set edges and a center that still appears slightly soft. The bars will continue to firm up during cooling, so avoid overbaking them if you want a chewy texture.

Can I cut the bars while they are warm?

You can, but they may be delicate and messy because the chocolate is still melted and the center has not fully set. For the cleanest squares, let the bars cool completely before slicing.

Final Thoughts

These Congo Bars are a simple, satisfying dessert for anyone who loves homemade chocolate chip cookies. Their buttery brown sugar base, chewy texture, and generous combination of semisweet chocolate chunks and milk chocolate chips make them a treat worth baking again and again.

Whether you're preparing dessert for a gathering or simply want something sweet to enjoy with a cup of coffee, this easy pan-baked recipe is a wonderful choice. Make a batch, let it cool, slice it into squares, and enjoy every chocolate-filled bite.

If you try these Congo Bars, share how they turned out and let others know whether you added any favorite mix-ins!