These soft and gooey cookie bars are packed with melty chocolate chips and crunchy Reese’s Pieces — the ultimate mash-up of peanut butter and chocolate in every chewy bite. Perfect for parties, bake sales, or your own sweet tooth fix!
Prep Time: 10 minutes
Bake Time: 25–30 minutes
Total Time: 40 minutes
Servings: 16 bars
Calories per Serving: ~330 kcal
🛒 Ingredients
🧈 3/4 cup (1 1/2 sticks) unsalted butter, melted
🍬 1 cup light brown sugar, packed
🍬 1/4 cup granulated sugar
🥚 2 large eggs
🥄 2 tsp vanilla extract
🥣 2 cups all-purpose flour
🧂 1/2 tsp salt
🌟 1/2 tsp baking soda
🍫 1 cup semi-sweet chocolate chips
🥜 1 cup Reese’s Pieces (plus more for topping)
👩🍳 Instructions
1️⃣ Preheat & Prep:
Preheat oven to 350°F (175°C). Lightly grease a 9×13″ baking dish or line it with parchment paper.
2️⃣ Mix Wet Ingredients:
In a large bowl, whisk melted butter, brown sugar, and granulated sugar until smooth. Beat in eggs and vanilla.
3️⃣ Add Dry Ingredients:
Stir in flour, salt, and baking soda until just combined. Do not overmix.
4️⃣ Fold in the Goodies:
Gently fold in chocolate chips and 1 cup Reese’s Pieces.
5️⃣ Spread & Top:
Spread dough evenly into the prepared baking dish. Press a few extra Reese’s Pieces on top for color.
6️⃣ Bake:
Bake for 25–30 minutes or until golden brown around the edges and just set in the center. Let cool completely in the pan before slicing into bars.
🍯 Why You’ll Love This Recipe
- 🍫 Peanut butter + chocolate = unbeatable combo
- 🍪 Chewy center, crisp edges — the perfect cookie bar texture
- 🎉 Easy to make and crowd-pleasing for any occasion
- 💡 Customizable with M&Ms, peanut butter chips, or nuts
💡 Helpful Tips
- Don’t overbake — bars continue to set as they cool.
- Want thicker bars? Use a 9×9″ pan and bake a few minutes longer.
- Add a sprinkle of sea salt on top for a sweet-salty twist.
- Store in an airtight container at room temp for up to 5 days (if they last that long!).
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