- 4 sticks (1 pound) unsalted butter, softened
- 1 1/3 cups sugar
- 3/4 teaspoon salt
- 3 large egg yolks
- 2 teaspoons vanilla
- 4 2/3 cups all-purpose flour
- In large bowl of a standing electric mixer beat together butter, sugar, and salt until light and fluffy. Beat in yolks, 1 at a time, and vanilla and beat until smooth. Beat in flour gradually, beating dough until just combined well.