Add one cup of the flour, egg, sugar, milk, baking powder, vanilla, and salt. Beat until thoroughly combined. Beat in remaining flour. Cover dough and chill for at least 3 hours. Use the cookie cutter to cut out stars.
Place cookies on an ungreased cookie sheet.
To make your stars green, just like the ones on the Sneetches' bellies, decorate with green sprinkles. Bake for 7-8 minutes or until edges are firm and the bottoms are lightly browned. Cool cookies on a rack. Makes 36-48 cookies. S'mores taste best when the marshmallows are toasted over a campfire at a Sneetch Beach picnic, but here's a recipe for those rainy days when you're stuck inside.