Ingredients

• graham cracker crumbs - 1 ½ cups
• powdered sugar - 1 cup
• creamy peanut butter - 1 cup
• unsalted butter - ½ cup
• semi-sweet chocolate chips - 1 cup
• vanilla extract - 1 teaspoon

Instructions

1. 1.

   In a medium bowl, mix together graham cracker crumbs, powdered sugar, and peanut butter until well combined.

2. 2.

   Melt the unsalted butter in a saucepan over low heat and stir in the vanilla extract.

3. 3.

   Pour the melted butter mixture into the peanut butter mixture and stir until fully combined.

4. 4.

   Press the mixture evenly into the bottom of a lined 8x8 inch baking pan.

5. 5.

   In a microwave-safe bowl, melt the semi-sweet chocolate chips in 30-second intervals, stirring in between until smooth.

6. 6.

   Pour the melted chocolate over the peanut butter layer in the pan and spread evenly.

7. 7.

   Refrigerate the bars for at least 2 hours or until firm.

8. 8.

   Once set, cut into squares and serve. Store any leftovers in the refrigerator.