You'll find this the best sugar cookie dough ever. Sponge paint some of these cookies with a sea sponge and egg yolk paint before baking them.
1 cup butter, softened
1 1/2 cups sugar
1 large egg
3 1/3 cups all-purpose flour
1 teaspoon cream of tartar
1/2 teaspoon salt
1 egg yolk, lightly beaten
1/4 teaspoon water
Assorted colors of paste food coloring
Vanilla and chocolate ready-to-spread frosting
Chocolate candy bar sprinkles (optional)
Chopped pecans (optional)
Melted semisweet chocolate (optional)
Red cinnamon candies (optional)
How to Make It
Beat butter at medium speed of an electric mixer 2 minutes or until creamy. Gradually add 1 1/2 cups sugar, beating well. Add egg and beat well.
Combine flour, cream of tartar, and salt; add to butter mixture, beating at low speed just until blended.
Roll dough to 1/4" thickness between 2 sheets of wax paper. Cut with cookie cutters. Place 1" apart on ungreased cookie sheets.
Combine egg yolk and water; stir well. Divide mixture among several cups. Tint with desired colors of food coloring. Keep egg yolk paint covered until ready to use. Add a few drops of water if paint thickens too much.
Using a small paintbrush or sea sponge, paint assorted designs on some cookies with egg yolk paint. Sprinkle some cookies with decorator sugar. (Some cookies will be baked plain.)
Bake at 350° for 10 to 12 minutes. Let cookies stand 1 minute on cookie sheets. Carefully transfer cookies to wire racks to cool completely. Frost remaining cookies with vanilla and chocolate frosting and decorate as desired.