1. Heat oven to 400 degrees.
2. Mix thoroughly in a bowl the butter, shortening, sugar and eggs.
3. Blend in flour, cream of tartar, soda and salt.
4. Chill.
5. Shape rounded teaspoonfuls into balls.
6. Roll in sugar mixture (listed below) leaving a small area uncoated.
7. Place uncoated side down on an ungreased baking sheet two inches apart.
8. Slightly flatten balls with a glass.
9. Bake 6 to 8 minutes or until set.
10. Remove from baking sheet immediately.
sugar mixture: 2 tablespoons of sugar 2 teaspoons cinnamon 1 teaspoon nutmeg mix all ingredients in a small shallow bowl.