Source: Martha Stewart Living, November 2005
- 6 tablespoons unsalted butter, softened
- 1/2 cup confectioners' sugar
- 2 large egg yolks
- 1 1/2 cups all-purpose flour
- 1/4 teaspoon salt
- 2 teaspoons heavy cream
Put butter and confectioners' sugar in the bowl of an electric mixer fitted with the paddle attachment. Mix on low speed until combined, about 2 minutes. Add egg yolks, and mix until combined, about 1 minute. Add 3/4 cup flour, and mix just until flour is incorporated. Add remaining 3/4 cup flour, the salt, and cream; mix until just combined, about 1 minute.
Shape dough into a disk; wrap in plastic, and refrigerate 2 hours or overnight.