Congo Bars (Chewy, Buttery & Old-Fashioned Chocolate Chip Blondies)
Thank you so much for being here 💛 Truly. Congo Bars are one of those timeless, old-school treats that instantly take me back—no frosting, no fuss, just rich…

Ingredients
Instructions
- Preheat oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
- In a large bowl, whisk together melted butter and brown sugar until smooth. Add eggs and vanilla, mixing until fully combined.
- Stir in flour, baking powder, and salt until just combined. Do not overmix.
- Gently fold in chocolate chips (and nuts if using).
- Spread batter evenly into the prepared pan. Bake for 25–30 minutes, until edges are set and the center is just slightly soft.
- Allow bars to cool completely before slicing for clean, chewy squares.
Thank you so much for being here 💛 Truly. Congo Bars are one of those timeless, old-school treats that instantly take me back—no frosting, no fuss, just rich, buttery goodness baked into a thick, chewy bar. If chocolate chip cookies and blondies had a baby, this would be it. And honestly? Sometimes simple really is best.
These are the bars you make when you want something comforting, nostalgic, and guaranteed to disappear from the pan. Anything but boring!!
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Congo Bars Recipe Overview
Congo Bars are thick, chewy blondie-style bars loaded with chocolate chips and brown sugar flavor. They’re baked in a single pan, sliced into generous squares, and perfect for sharing—or not sharing at all.
Reasons to Love Congo Bars
- Super chewy centers with crisp edges
- Rich brown sugar flavor
- Easy, one-bowl-style recipe
- Perfect for bake sales and potlucks
- No mixer required
What Do Congo Bars Taste Like?
Buttery, caramel-like, and sweet with melty chocolate chips in every bite. They’re softer and chewier than cookies, with that deep, cozy brown sugar flavor that feels instantly familiar.
Benefits of This Recipe
- Simple pantry ingredients
- Faster than baking cookies
- Feeds a crowd
- Easy to customize
- Great make-ahead dessert
Ingredients for Congo Bars
- ¾ cup unsalted butter, melted
- 1½ cups packed brown sugar
- 2 large eggs
- 1 tbsp vanilla extract
- 2¼ cups all-purpose flour
- 2½ tsp baking powder
- ½ tsp salt
- 1½–2 cups semi-sweet chocolate chips
Optional Add-Ins
- Chopped walnuts or pecans
- White chocolate chips
- Toffee bits
- Peanut butter chips
Necessary Tools for Preparation
- Large mixing bowl
- Whisk or spoon
- 9×13-inch baking pan
- Parchment paper or cooking spray
- Measuring cups and spoons
Possible Ingredient Additions and Substitutions
- Use dark brown sugar for deeper flavor
- Mix chocolate chips and chunks
- Add a pinch of cinnamon for warmth
- Swap half the chocolate chips for nuts
- Use gluten-free all-purpose flour if needed
How to Make Congo Bars Step by Step
Step 1: Preheat and Prepare
Preheat oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
Step 2: Mix Wet Ingredients
In a large bowl, whisk together melted butter and brown sugar until smooth. Add eggs and vanilla, mixing until fully combined.
Step 3: Add Dry Ingredients
Stir in flour, baking powder, and salt until just combined. Do not overmix.
Step 4: Fold in Chocolate Chips
Gently fold in chocolate chips (and nuts if using).
Step 5: Spread and Bake
Spread batter evenly into the prepared pan. Bake for 25–30 minutes, until edges are set and the center is just slightly soft.
Step 6: Cool and Slice
Allow bars to cool completely before slicing for clean, chewy squares.
What to Serve with Congo Bars
Congo Bars are perfect with:
- Cold milk
- Hot coffee
- Vanilla ice cream
- Fresh berries
- After-school snacks or dessert trays
Storage Instructions
Store Congo Bars in an airtight container at room temperature for up to 4 days or refrigerate for up to 1 week. Freeze sliced bars for up to 3 months.
General Information
- Prep Time: 10 minutes
- Bake Time: 25–30 minutes
- Total Time: 40 minutes
- Servings: 16–20 bars
Conclusion: A Classic Bar Cookie That Never Goes Out of Style
These Congo Bars are proof that old-fashioned recipes stick around for a reason. Chewy, buttery, and loaded with chocolate, they’re easy to make and impossible to resist. Whether you’re baking for a crowd or just craving something nostalgic, this recipe always delivers.
If you loved this recipe, try my chocolate chip blondies, peanut butter bars, or oatmeal fudge bars next.
I’d love to hear how yours turned out! Leave a review, share your photos on Pinterest, and let’s keep those classic, cozy desserts alive 🍪💛
Nutritional Information (Approximate per Bar)
- Calories: 280
- Carbohydrates: 38g
- Fat: 14g
- Protein: 3g
- Sugar: 24g
Tips for Success
- Don’t overbake—soft centers are key
- Let bars cool fully before cutting
- Use parchment for easy removal
- Measure flour correctly (spoon and level)
- Add extra chocolate chips on top before baking
Frequently Asked Questions
Why are they called Congo Bars?
They date back to early American baking and were popularized mid-20th century—rich, exotic-sounding names were trendy at the time.
Are Congo Bars the same as blondies?
Very similar—Congo Bars are typically thicker and chewier.
Can I halve the recipe?
Yes—use an 8×8-inch pan and bake 20–25 minutes.
Can I make these ahead?
Absolutely! They’re even better the next day.
