Need a cake full of chocolaty perfect? Then enjoy this Mississippi Mud Cake!
- Bake chocolate cake in a 9x13 baking dish according to package instructions.
- While the cake bakes, make the chocolate frosting. In a small saucepan over medium-high heat, melt butter. Whisk in milk and cocoa butter. Cook for 2 to 3 minutes, stirring constantly until mixture is fully combined and has slightly thickened. Remove from heat.
- Gradually beat powdered sugar into chocolate mixture until frosting is smooth.
- Pour marshmallows and chocolate frosting over baked cake. Bake at 350 degrees Fahrenheit for 2 to 3 minutes, or until marshmallows has lightly puffed.
- Serve warm and enjoy!