Snickerdoodles

1 cup butter
1 1/2 cups sugar
2 eggs
2 1/2 cups featherlight flour
1/2 cup gluten free flour
2 teaspoons xanthan gum
1 teaspoon baking soda
1/2 teaspoon baking powder
2 teaspoons cream of tartar
1/4 teaspoon salt

2 tablespoons sugar
2 teaspoons cinnamon

Cream together the butter, sugar and eggs.  Add flours, xanthan gum, soda, baking powder, cream of tartar and salt.  Blend.  Cover and refrigerate for 30 minutes.  In a small bowl, stir together 2 tablespoons sugar and 2 teaspoons cinnamon.  Shape dough into 1 inch balls and roll in cinnamon-sugar.  Place on ungreased baking sheet and bake at 400º for 8 minutes or until bottoms are lightly browned.