These Reese’s Pieces Chocolate Chip Cookie Bars are thick, chewy, and packed with peanut butter candy and rich chocolate chips in every bite. They combine the classic comfort of a soft chocolate chip cookie with the colorful crunch of Reese’s Pieces, all baked conveniently in one pan. Perfect for parties, bake sales, or an easy weeknight dessert.
Why You’ll Love This Recipe
These cookie bars are incredibly easy to make since there’s no need to scoop individual cookies. The dough comes together in one bowl, and the bars bake evenly in a single pan.
They have a soft and chewy center with slightly crisp edges, giving you the best cookie texture in every square. The combination of brown sugar and granulated sugar creates a deep caramel flavor, while the Reese’s Pieces add a sweet peanut butter crunch that pairs beautifully with melty chocolate chips.
They’re also easy to customize, store well, and are ideal for making ahead for gatherings or lunchbox treats.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 cup (226 g) unsalted butter, softened
1 cup (200 g) packed brown sugar
1/2 cup (100 g) granulated sugar
2 large eggs, room temperature
2 teaspoons vanilla extract
2 1/2 cups (315 g) all-purpose flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
1 cup (175 g) semi-sweet chocolate chips
1 cup (200 g) Reese’s Pieces candies
Directions
Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan or line it with parchment paper for easy removal.
In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy, about 2 to 3 minutes.
Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
In a separate bowl, whisk together the flour, baking soda, baking powder, and salt.
Gradually add the dry ingredients to the wet mixture, mixing just until combined. Do not overmix.
Fold in the chocolate chips and Reese’s Pieces until evenly distributed throughout the dough.
Spread the dough evenly into the prepared baking pan, smoothing the top with a spatula.
Bake for 25 to 30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out with a few moist crumbs.
Allow the bars to cool completely in the pan before slicing into squares.
Servings and timing
Servings: 16 large bars or 24 smaller bars
Preparation time: 15 minutes
Baking time: 25 to 30 minutes
Cooling time: 30 to 45 minutes
Total time: About 1 hour 15 minutes
Variations
For a richer flavor, substitute half of the semi-sweet chocolate chips with milk chocolate or dark chocolate chips.
Add 1/2 cup chopped roasted peanuts for extra crunch and enhanced peanut butter flavor.
Swirl 1/3 cup creamy peanut butter into the top of the dough before baking for a marbled effect.
Use mini chocolate chips for more even chocolate distribution in every bite.
For a thicker bar, bake the dough in a 9×9-inch pan and increase the baking time by 5 to 10 minutes.
Storage/Reheating
Store the cookie bars in an airtight container at room temperature for up to 4 days.
For longer storage, refrigerate them in a sealed container for up to 1 week. Allow them to come to room temperature before serving for the best texture.
To freeze, wrap individual bars tightly in plastic wrap and place them in a freezer-safe container or bag for up to 3 months. Thaw at room temperature.
To reheat, warm a bar in the microwave for 10 to 15 seconds to restore its soft, gooey texture.
FAQs
Can I use salted butter instead of unsalted butter?
Yes, but reduce the added salt in the recipe to 1/4 teaspoon to avoid an overly salty taste.
Can I make these cookie bars ahead of time?
Yes, they can be baked a day in advance and stored in an airtight container until ready to serve.
How do I know when the bars are done baking?
The edges should be golden brown and a toothpick inserted in the center should come out with a few moist crumbs, not wet batter.
Can I substitute the Reese’s Pieces with another candy?
Yes, you can use chocolate candies, peanut butter chips, or even chopped chocolate bars as a substitute.
Why are my cookie bars dry?
Overbaking or adding too much flour can cause dryness. Be sure to measure flour correctly and remove the bars once the center is just set.
Can I double this recipe?
Yes, double the ingredients and bake in two 9×13-inch pans or one large sheet pan, adjusting the baking time as needed.
Can I make this recipe gluten-free?
Yes, substitute the all-purpose flour with a 1:1 gluten-free baking flour blend designed for baking.
Do I need to chill the dough?
No, chilling is not required for this recipe. The dough can be baked immediately after mixing.
Can I reduce the sugar?
You can slightly reduce the granulated sugar by 2 to 3 tablespoons, but reducing too much may affect texture and sweetness.
How should I cut clean slices?
Allow the bars to cool completely, then use a sharp knife and wipe it clean between cuts for neat edges.
Conclusion
Reese’s Pieces Chocolate Chip Cookie Bars are a simple yet indulgent dessert that brings together soft cookie texture, rich chocolate, and crunchy peanut butter candy in every bite. With easy preparation and flexible variations, this recipe is perfect for sharing with family and friends or enjoying as a sweet homemade treat any time.
