Turkish Soldier Buttons

2 cups all-purpose flour
1 cup butter, softened
1 cup powdered sugar
1 egg
1 teaspoon vanilla
strawberry jam

Preheat oven to 350F. Lightly grease a cookie sheet. Mix together flour, powdered sugar, butter, egg, and vanilla. Shape dough in to 1-1/2 inch rounds, and place on cookie sheet. Press down the center with your thumb. Fill each hole with jam. Bake 12 minutes, or until the bottoms are lightly browned.