1Beat butter, sugar and vanilla in large bowl with electric mixer on medium speed, or mix with spoon. Stir in flour
2Divide dough in half. Shape each half into roll, about 2 inches in diameter and about 6 inches long. Roll in candy sprinkles. Wrap and refrigerate at least 2 hours until firm.
3Heat oven to 350°F. Cut rolls into 1/8-inch slices. Place about 2 inches apart on ungreased cookie sheet. Bake 10 to 12 minutes or until light brown. Immediately remove from cookie sheet to wire rack.