Ingredients:1 box dark chocolate cake mix1 cup mini Reese’s peanut butter cups, halved¾ cup unsalted butter, melted1 cup chocolate chips½ cup chopped walnuts (optional)Instructions:Preheat oven to 350°F (177°C). Grease a 9x13 inch baking dish with cooking spray or butter.Dump the dry cake mix evenly into the prepared baking dish. Do not mix it with any other ingredients yet.Scatter the halved mini Reese’s peanut butter cups evenly over the top of the dry cake mix.Sprinkle chocolate chips over the surface.If desired, sprinkle chopped walnuts for added crunch.Pour the melted butter slowly and evenly over the entire surface, making sure to wet as much of the cake mix as possible.Bake for 30–35 minutes, or until the top is golden and bubbly, and the edges are set. The center should still be slightly gooey.Let the cake cool for 10–15 minutes before serving. Optionally, drizzle melted peanut butter or chocolate over the top for an extra indulgent touch.