01 -
In a large mixing bowl, combine the yellow cake mix, melted butter, vanilla extract, and eggs. Stir until thoroughly blended.
02 -
Gently fold the chocolate chips into the batter, mixing just until evenly distributed.
03 -
Grease a 9x13-inch baking pan with nonstick spray or butter.
04 -
Press the batter evenly into the prepared baking pan. Scatter the Reece’s Pieces candies evenly over the surface and gently press them into the batter.
05 -
Bake in a preheated oven at 350°F (177°C) for 20 to 25 minutes, or until the edges are golden and the top is set. Cool in the pan before cutting.