Mix thoroughly, butter, powdered sugar, egg, vanilla, and almond extract.
Blend in flour, baking soda, and cream of tartar.
Optional: Cover and chill for 2-3 hours.
Heat oven to 375º. Divide dough in half. Roll each half 3/16 inch thick on lightly floured surface.
Cut into desired shapes. Sprinkle with granulated sugar or sprinkles if desired.
Place on parchment paper-lined cookie sheet. Bake for 7 minutes or until very lightly brown on the edges. Cool and add frosting if desired.