Bake cake as directed in ... blueberry pie filling. Frost between layers and sides of cake, bringing frosting onto top layer about 1/2-inch ... drip down the sides.
Preheat oven to 350°F. Grease ... whipped cream into frosting and add grated zest. Beat until combined and frost cake as you would normally ... layers should be up.
In a large mixing bowl, ... of filling. For Frosting: Combine all ingredients in ... the cake top. Frost the sides and top edges ... cake to enjoy later.