Ingredients

  • CAKE
  • 1 (18 1/4 ounce) package devil's food cake mix
  • 1 1/4 cups water (or amount specified on the cake mix box)
  • 1/2 cup vegetable oil (or amount specified on the cake mix box)
  • 3 eggs (or amount specified on the cake mix box)
  • FILLING
  • 3/4 cup sugar
  • 6 ounces evaporated milk
  • 1/2 cup margarine or 1/2 cup butter
  • 2 teaspoons vanilla
  • 2/3 cup vegetable shortening
  • 1/8 teaspoon salt
  • ICING
  • 1 (15 ounce) can dark chocolate frosting (or your favorite homemade frosting recipe)

Method

  • Preheat oven to 350°F (or temperature specified on cake mix box); grease and flour a 9 x 13 baking pan (for cake) OR a large jelly roll pan (for bars).
  • Make cake as directed on the cake mix package using the mix, water, oil, and eggs.
  • Bake 30-40 minutes for the cake or as directed on the box, OR 12-15 minutes to make the bars in a jelly roll pan.
  • Cool completely.
  • Beat the filling ingredients until light and fluffy; this will take about 10-15 minutes.
  • (Don't be alarmed if it looks kind of curdled and scary at first since it takes time for it to pull together!).
  • Spread the filling over the cooled cake.
  • Warm the frosting in the microwave until it is a pourable consistency (do this slowly by only cooking for 15-20 seconds at a time, and stirring).
  • Pour the frosting evenly over the filling.
  • Refrigerate until thoroughly cool and firm (overnight is highly recommended).
  • Store cake in the refrigerator.