Thoroughly cream butter, sugar and vanilla. Add egg and beat til light and fluffy. Stir in milk. Sift together dry ingredients and blend into creamed mixture. divide dough in half and chill for 1 hour.
On a lightly floured surface, roll dough to 1/8" thickness. cut into desired shapes. Bake on nonstick cookie sheet at 375 for 6-8 mins. Cool slightly before removing from pan. makes 2 dozen or more.