Beat softened butter (and cream cheese or vegetable shortening) at medium speed with an electric mixer until creamy. This can take from 1 to 7 minutes, depending on the power of your mixer. Gradually add sugar, continuing to beat until light and fluffy. These steps are important because they whip air into the cake batter so it will rise during baking.
- Pictured Recipe: Strawberry Swirl Cream Cheese Pound Cake