Big Burger Cake

Steps

• 1

  Heat oven to 300ºF. Grease 1 1/2-quart round casserole with shortening; lightly flour.
• 2

  In medium bowl, beat cake mix, water and eggs with electric mixer on low speed 30 seconds; beat on medium speed 3 minutes. Pour into casserole.
• 3

  Bake 1 hour 5 minutes to 1 hour 10 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes; remove cake from casserole and place rounded side up on cooling rack. Cool completely, about 1 hour.
• 4

  Cut cake horizontally into 3 equal layers. Freeze pieces uncovered about 1 hour for easier frosting if desired.
• 5

  In medium bowl, mix powdered sugar and peanut butter with spoon or electric mixer on low speed. Stir 1/4 cup milk. Beat until smooth and spreadable. If necessary, stir in additional milk, 1/2 teaspoon at a time.
• 6

  Place bottom cake layer on serving plate. Frost side only of layer. Mix 3/4 cup of the remaining frosting and the cocoa; if necessary, stir in 1 to 3 teaspoons milk until spreadable. Frost top of bottom layer with part of the cocoa frosting. Place middle (hamburger) layer on top; frost top and side of middle layer with remaining cocoa frosting.
• 7

  Drizzle side of middle layer with preserves to look like ketchup. Place remaining (rounded) layer on top. Frost with remaining frosting. Immediately sprinkle top of cake with sesame seed.