Vanilla Buttercream Filling
Use this sweet, creamy filling in our Coconut Sandwich Cookies. This recipe also appears on the Martha Stewart Makes Cookies app for iPad.
- 1/2 cup (1 stick) unsalted butter, softened
- 1 cup confectioners' sugar
- 1/2 teaspoon pure vanilla extract
Beat butter with an electric mixer on medium-high speed until creamy, about 2 minutes. Reduce speed to medium, and beat in confectioners' sugar, 1/2 cup at a time, scraping down side of bowl as necessary, until pale and fluffy, about 5 minutes. Add vanilla, and beat until smooth.