- 1 4 ounce stick unsalted butter, at room temperature
- 4 ounces cream cheese, at room temperature
- 6 tablespoons sugar
- 1/2 teaspoon pure vanilla extract
- 1 egg yolk
- 1/8 teaspoon salt
- 1 cup plus 2 tbsp flour
Using an electric mixer, cream the butter, cream cheese and sugar on high speed for 3 minutes.
Add the vanilla, egg yolk and salt and mix at low speed until blended. Mix in the flour at low speed until incorporated.