– 40 Mini Reese's peanut butter cups, 1" size – 1/2 cup (1 stick) butter, room temperature – 1/2 cup granulated sugar – 1/2 cup light brown sugar – 1/2 cup creamy peanut butter – 1 large egg – 1 1/2 tsp. vanilla extract – 1 1/2 cups all purpose flour – 1 tsp. baking soda – 1/2 tsp. salt
Using your hands, begin rolling the dough into 1" cookie dough balls. Place each dough ball into the mini muffin pan. Once the pan is filled, bake the cookies at 375 degrees for 9-11 minutes or until the cookies are puffy and slightly golden brown. Don't overbake.
Once the cookies come out of the oven, while still hot, press a single peanut butter cup into the center of each cookie. Once peanut butter cups have been places, using a table knife, gently run around the edge of the cookie, and lift it out. Cookies will come out easily.
Transfer baked cookies to a cooling rack to cool to room temperature.