Combine the butter, sugar, and flavorings in the bowl of a stand mixer fitted with a paddle attachment.
Start mixing on low speed until the sugar is incorporated with the butter. Increase the mixing speed to high and beat until smooth and fluffy, about 2 minutes.
Adjust the consistency with milk as needed.
Store unused buttercream in the refrigerator in an airtight container and bring it back to room temperature before using to pipe or frost.
Buttercream Flavor Options
Vanilla American Buttercream: Add in 2 tsp vanilla extract
Chocolate American Buttercream: Add 1 cup of sifted unsweetened cocoa powder
“Wedding Cake” American Buttercream: Add 1 tsp vanilla extract and ½ tsp almond extract
Lemon American Buttercream: Add 3 TBSP lemon zest and ¼ cup lemon juice. Remove the milk and increase the confectioner’s sugar to 9 cups.
Strawberry, Raspberry, or Blackberry American Buttercream: Fold in 1 cup of seedless preserves
