Publix Sugar Cookies

1 C. all-purpose flour
1 t. baking powder
1/2 t. salt
1 C. sugar
1/2 C. butter, softened
1 egg
1 t. vanilla extract
cooking spray
sugar, sprinkles or candy decorations, optional

1. Combine flour, baking powder and salt; mixing well.  Combine sugar and butter in large bowl with electric mixer on high speed, until well mixed.  Add egg and vanilla; mix well.  Add flour mixture; mix well.
2. Chill 2 hours until firm.
3. Preheat oven to 350 degrees.  Shape chilled dough into 2 6x1-1/2 inch rolls.  Cut into 1/4-inch thick slices and place on lightly greased baking sheet.  Sprinkle with decorations, if using. Bake 10-12 minutes or until light golden brown.  Cool completely.