Ingredients for 1 servings:
1. 1 cup butter
2. 1 1/2 cups sugar
3. 1/2 cup sour cream
4. 3 cups flour
5. 1/4 teaspoon salt
6. 1 teaspoon baking powder
7. 1 teaspoon baking soda
8. 1 teaspoon vanilla extract
9. 1 tablespoon lemon juice
10. sugar

Directions:
1. Cream butter and sugar.
2. Add sour cream; blend well.
3. Add vanilla and lemon juice or extract.
4. Add dry ingredients.
5. Chill 3 to 4 hours.
6. When ready to bake, preheat oven to 350 degrees F.
7. Grease cookie sheets.
8. Shape dough into small balls and roll in extra sugar.
9. Flatten balls using the bottom of a glass after arranging on cookie sheets.
10. Bake 10 minutes or until lightly browned.