Ho Ho Cake

Ingredients

• 1 box german chocolate cake mix made according to package directions
• 3 tbsp (45 ml) flour
• 1-1/4 cups (300 ml) milk
• 1/2 cup (125 ml) margarine
• 1-1/2 cups (350 ml) white sugar
• 1/2 cup (125 ml) Crisco or other vegetable shortening
• 1/2 cup (125 ml) margarine
• 1 egg
• 1 tsp (5 ml) vanilla
• 2 tsp (10 ml) hot water
• 2 cups (475 ml) powdered sugar
• cocoa (to suit taste)