Filled Sugar Cookies

1 cup sugar
1/2 cup shortening (includes 1/4 cup butter)
1 egg
2 teaspoons cream of tartar
1 teaspoon baking soda
3 1/2 cups all-purpose flour
1/2 cup sweet milk
1 teaspoon vanilla extract

Cream shortening with sugar. Add egg and milk. Sift dry ingredients and add. Roll out thin. Cut in 3- or 4-inch circles. Top with 1 tablespoon cherry or raspberry filling and top with another circle of dough. Press edges together. Sprinkle with granulated sugar and bake at 350 degrees F for 13 to 15 minutes. Don't let cookies brown.