What is a simple recipe for delicious brownies using only a 3-ingredient cake mix?

To make simple and delicious brownies using only a 3-ingredient cake mix, you will need the cake mix, 1/2 cup of melted butter, and 2 eggs. Mix all the ingredients together until smooth, then pour the batter into a greased baking pan. Bake at 350F for about 20-25 minutes, or until a toothpick inserted in the center comes out clean. Let the brownies cool before cutting and serving. Enjoy!