1 cup shortening
1 cup brown sugar
3/4 cup sugar
2 eggs
1 cup peanut butter
2 cups all-purpose flour
1 cup oatmeal
2 tsp. baking soda
1/4 tsp. cream of tartar
1/2 tsp. salt

Mix all ingredients together. Roll into balls and flatten with fork. Bake at 375°F for about 10 minutes.