This silky vanilla butter frosting is the classic American buttercream, whipped until light, airy, and perfectly spreadable. It uses a simple technique of beating the butter until pale and fluffy before adding sugar, which creates a smooth, creamy texture that pipes beautifully and pairs with almost any cake or cupcake. This recipe yields about 3 cups, enough to frost a 9×13-inch sheet cake, a two-layer 8-inch round cake, or 24 cupcakes.
Ingredients
- 1 cup (2 sticks / 226 g) unsalted butter, softened to room temperature
- 4 cups (480 g) powdered sugar, sifted
- 2 teaspoons vanilla extract
- 2 to 4 tablespoons heavy cream or whole milk, at room temperature
- 1/8 teaspoon salt (omit if using salted butter)
Instructions
- In a large mixing bowl, beat the softened butter with an electric mixer (hand or stand mixer with paddle attachment) on medium speed until it is smooth, creamy, and pale in color, about 2 to 3 minutes. Scrape down the sides and bottom of the bowl with a spatula.
- Add the sifted powdered sugar, about 1 cup at a time, mixing on low speed after each addition until the sugar is incorporated. This prevents a cloud of sugar dust and keeps the frosting smooth.
- Once all the sugar is added, mix in the vanilla extract and salt (if using).
- Add 2 tablespoons of the heavy cream or milk and beat on medium-high speed for 3 to 5 minutes, until the frosting is light, fluffy, and silky. If the frosting is too thick, add the remaining 1 to 2 tablespoons of cream, one at a time, beating well after each addition until you reach the desired consistency.
- Use immediately, or cover and store in the refrigerator until ready to use. If refrigerated, let it come to room temperature and re-whip for a few seconds before frosting your cake.
Tips
- Butter temperature: The butter must be softened but not melted. It should yield to gentle pressure but still hold its shape. If it’s too soft, the frosting will be runny; if too cold, it will be lumpy.
- Sift the sugar: Sifting the powdered sugar removes lumps and ensures a silky, smooth texture. If you skip this, you may end up with small lumps that are hard to beat out.
- Adjust consistency: For piping intricate designs, use less liquid (2 tablespoons). For spreading on a cake, use the full 3 to 4 tablespoons. For a thinner glaze, add a little more cream.
- Flavor boost: Use a high-quality vanilla extract or vanilla bean paste for the best flavor. You can also scrape the seeds from half a vanilla bean into the butter for a more intense vanilla taste.
Serving Suggestions
This vanilla butter frosting is incredibly versatile. Use it to frost a classic vanilla or chocolate layer cake, a sheet cake, or a batch of cupcakes. It also works well on red velvet cake, carrot cake, or banana cake. For a simple dessert, spread it on graham crackers or use it as a filling for sandwich cookies. It pairs beautifully with fresh berries, chocolate shavings, or a sprinkle of toasted nuts.
Variations
- Chocolate: Add 1/2 cup (60 g) unsweetened cocoa powder sifted with the powdered sugar, and increase the cream by 1 to 2 tablespoons.
- Almond: Substitute 1 teaspoon of vanilla extract with 1/2 teaspoon of almond extract.
- Lemon: Add 1 tablespoon of lemon zest and replace the vanilla extract with 1 teaspoon of lemon juice.
- Coffee: Dissolve 1 tablespoon of instant espresso powder in the 2 tablespoons of cream before adding it to the frosting.
- Berry: Fold in 1/4 cup of seedless raspberry or strawberry jam after the frosting is whipped.
Storage and Reheating
Store the frosting in an airtight container in the refrigerator for up to 1 week. Before using, let it sit at room temperature for 30 to 60 minutes, then re-whip with the mixer for a few seconds to bring back its silky texture. You can also freeze the frosting in an airtight container for up to 3 months. Thaw overnight in the refrigerator, then bring to room temperature and re-whip.
Frequently Asked Questions
Why is my frosting too runny? This usually happens if the butter was too warm or if too much liquid was added. To fix it, chill the frosting in the refrigerator for 15-20 minutes, then re-whip. If it’s still too soft, beat in a little more sifted powdered sugar (about 1/4 cup at a time) until it firms up.
Why is my frosting lumpy? Lumps are usually caused by unmelted butter or unsifted powdered sugar. Make sure the butter is fully softened before beating. Sift the powdered sugar before adding it. If lumps persist, you can strain the frosting through a fine-mesh sieve to remove them.
Can I use salted butter? Yes, you can use salted butter, but omit the additional salt in the recipe. The frosting will have a slightly saltier flavor, which can be a nice contrast to sweet cakes.
How do I make the frosting stiffer for piping? Reduce the amount of cream to 1 to 2 tablespoons, or add extra sifted powdered sugar (about 1/4 cup at a time) until the frosting holds a stiff peak. Be careful not to over-beat, as this can make the frosting grainy.
Can I use milk instead of heavy cream? Yes, whole milk or even 2% milk will work. Heavy cream produces a richer, slightly more stable frosting, but milk is a fine substitute. Use the same amount.
How much frosting does this recipe make? This recipe makes about 3 cups of frosting, which is enough to fill and frost a two-layer 8-inch round cake, a 9×13-inch sheet cake, or 24 cupcakes. For a three-layer cake, you may want to make a half batch more.