Ingredients
The following ingredients have 108 Servings
- 1 box white cake mix (15.25 oz (I prefer Duncan Hines))
- 1 cup granulated sugar
- 1 cup all purpose flour
- 3/4 tsp salt
- 4 larg egg whites
- 1 tsp vanilla extract (clear or regular)
- 1 cup skim milk
- 1/2 cup buttermilk
- 1 cup sour cream
- 2 sticks unsalted butter, room temperature (1 cup)
- 3-4 cups powdered sugar
- 1 tsp vanilla extract
- 1 tbsp milk (if frosting becomes too thick)