Swedish Spritz Cookies

Cream the butter. Add the sugar, egg yolks, and vanilla and beat well. Stir in the flour. Form the dough into four balls. Chill thoroughly.

Preheat the oven to 375 degrees F.

Working with one ball of dough at a time, put the dough in a cookie press and press out various designs and shapes onto ungreased baking sheets.

Bake for 10 minutes or until golden brown. Remove to wire racks to cool completely.