Basic Buttercream Frosting By Ann Zeise | July 29, 2020 - 10:35 PM |July 29, 2020 Family Recipes Combine in mixing bowl; 4 cups (1lb) unsalted powdered sugar 1/4 tsp salt 1/4 cup milk or other liquid 1 tsp vanilla 1/3 cup soft butter Beat Smoothe Frosts two 8′ or 9′ layers Tagged Dessert. Bookmark the permalink.