Custard Amaretto Cake
["1 (18 1/2 oz.) yellow cake mix", "1/3 c. cornstarch", "1 c. water", "4 eggs", "1/3 c. oil", "1 tsp. vanilla", "1/3 c. cocoa", "3/4 c. Amaretto"]
["In large mixing bowl, sift together cake mix and cornstarch. Add water, eggs, oil and vanilla.", "Mix until smooth.", "Grease and flour pans.", "Pour half the batter (3 cups) into 1 pan.", "Add cocoa to remaining batter, stirring until blended.", "Pour this batter into other pan.", "Bake at 350\u00b0 for 30 minutes.", "Cool in pan 10 minutes. Remove and cool on rack.", "Freeze layers for 2 hours.", "Split each layer in half.", "Brush each layer with Amaretto.", "Put a chocolate layer on plate and spread with 1/3 custard filling.", "Repeat with remaining layers ending with yellow.", "Frost with whipped cream."]
["yellow cake", "cornstarch", "water", "eggs", "oil", "vanilla", "cocoa"]