Burtter Cookies Recipe

In large bowl with electric mixer at medium speed, beat butter, sugar and vanilla until light and fluffy; beat egg in well. In small bowl combine flour, baking powder and salt; with mixer at low speed, beat into butter mixture to blend well. Flatten dough to disk shape. Refrigerate wrapped in plastic for 30 minutes.
Work with one-fourth dough at a time; keep remainder refrigerated.
Heat oven to 350~F. Roll dough out to 1/8" or 1/4" thickness on lightly floured surface and cut into desired shapes, or mold in shapes.
Place on ungreased cookie sheets, 1"apart. Bake 8-15 minutes, depending on thickness of dough, until lightly browned. Cool on wire racks. Store in airtight containers.