peanut butter chocolate chip bars

Peanut Butter Chocolate Chip Bars

ByLuna Hossain

I like making these peanut butter chocolate chip bars when I want something simple and baked in one pan. I usually make them on a weekend afternoon when I don’t feel like scooping cookies. The bars are thick, chewy, and soft in the middle, with melted chocolate and a strong peanut butter taste.

Step by Step Method

Prepare the Pan and Oven

Start by heating the oven to 350°F. Line an 8×8 or 9×9 baking pan with parchment paper, making sure the paper hangs over the sides. This makes it easier to lift the bars out later without breaking them. Set the pan aside while you make the batter.

Mix the Butter and Sugar

Melt the butter until just liquid, then pour it into a mixing bowl. Add the sugar and stir well until the mixture looks smooth and shiny. This step helps the bars bake up dense and chewy instead of dry.

Add Eggs and Peanut Butter

Crack the eggs into the bowl and mix until fully blended. Add the peanut butter and stir until the batter turns thick and evenly colored. At this stage, the batter should look creamy and slightly heavy.

Add the Dry Ingredients

Sprinkle the flour and salt over the batter. Stir gently until no dry flour remains. Stop mixing as soon as everything is combined. Overmixing here can make the bars tough instead of soft.

Fold in the Chocolate

Add the chocolate chips and peanut butter chips, if using. Fold them in slowly so they are spread evenly throughout the batter. The batter will be thick and scoopable.

Fill the Pan and Add Toppings

Spread the batter evenly into the prepared pan and smooth the top. Sprinkle extra chocolate chips over the surface. If you want a peanut butter swirl, drop small spoonfuls of peanut butter on top and gently swirl, or leave them as soft pools.

Bake Until Just Set

Place the pan in the oven and bake for 30 to 35 minutes. The top should look lightly golden, the edges should feel firm, and the center should still look slightly soft. Avoid baking until the middle looks dry.

Cool and Slice

Remove the pan from the oven and let the bars cool completely in the pan. As they cool, they will firm up and hold their shape. Once cool, lift them out using the parchment paper and cut into squares.

Why You Will Love This Recipe

This recipe is made in one bowl and baked in one pan, which keeps cleanup simple. The peanut butter adds richness and moisture, while the chocolate stays soft and melted inside. The bars are thick, chewy, and easy to slice, making them practical to bake and store without much effort.

Luna Hossain

Peanut Butter Chocolate Chip Bars

These peanut butter chocolate chip bars are an easy, one-pan treat that’s thick, soft, and chewy with a rich peanut butter flavor and melted chocolate throughout. The recipe involves melting butter and mixing it with sugar, eggs, and peanut butter, then gently folding in flour, salt, and chocolate chips. The thick batter is spread into a lined pan, optionally topped with extra chocolate or a peanut butter swirl, and baked at 350°F for about 30–35 minutes until the edges are set and the center is slightly soft. After cooling, the bars are sliced into squares. The recipe is loved for its simple one-bowl method, minimal cleanup, moist texture, and convenient storage.
Calories: ~260 | Carbs: ~28g | Fat: ~15g | Protein: ~6g
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 16
Course: Bars & Brownies
Cuisine: American
Calories: 260
Ingredients Equipment Method Notes

Ingredients
  

  • Peanut butter
  • Butter
  • Sugar
  • Eggs
  • Flour
  • Salt
  • Chocolate chips or chocolate chunks
  • Optional: peanut butter chips
  • Optional: extra peanut butter for a swirl on top

Equipment

  • Mixing bowl
  • Spoon or spatula
  • Measuring cups and spoons
  • 8×8 or 9×9 baking pan
  • Parchment paper
  • Oven

Method
 

  1. Heat the oven to 350°F and line the pan with parchment paper.
  2. The paper should hang over the sides so the bars are easy to lift out later.
  3. Melt the butter and mix it with the sugar in a bowl.
  4. Stir until it looks smooth and glossy.
  5. Add the eggs and peanut butter.
  6. Mix until the batter looks thick and evenly colored.
  7. Stir in the flour and salt.
  8. Stop as soon as no dry flour is visible. The batter will be thick.
  9. Fold in the chocolate chips and peanut butter chips, if using.
  10. The chips should be spread evenly through the batter.
  11. Spread the batter into the pan.
  12. Smooth the top and sprinkle a few extra chocolate chips on top.
  13. Add peanut butter on top if you want a swirl.
  14. Drop small spoonfuls on the surface and lightly swirl or leave them as soft puddles.
  15. Bake for 30–35 minutes.
  16. The top should look golden, the edges set, and the center still a little soft.
  17. Cool completely before cutting.
  18. The bars will firm up as they cool and slice more cleanly.

Notes

  • Do not overmix once the flour is added, or the bars can turn tough.
  • Do not bake until the center looks dry; they will keep cooking as they cool.
  • Measure flour carefully so the bars stay dense and not crumbly.

Why This Recipe Works

Peanut butter adds fat and flavor, which keeps the bars moist and dense. Baking in a square pan makes them thick instead of dry. Pulling them out when the center is just set keeps the inside chewy and soft, with melted chocolate pockets.

Serving Suggestions

I usually cut these into small squares and stack them on a plate. They go well with a glass of milk or a cup of coffee. I sometimes warm a bar for a few seconds so the chocolate softens again.

Fun Fact

Peanut butter bars are often called blondies because they are baked like brownies but without cocoa in the batter.

Conclusion

These bars keep well in an airtight container for a few days at room temperature. I sometimes add more chocolate chips or a thicker peanut butter swirl when I make them again. They’re easy to bake when I want something rich without much cleanup.

Similar Posts