Mom's snickerdoodles

We all love these cookies!   And my girls really enjoy rolling the dough in the cinnamon/ sugar mixture!
Ingredients:
1 cup butter, softened
1 1/2 cups sugar
2 large eggs
2 3/4 cups flour
2 tsp. cream of tartar
1 tsp. baking soda
1/4 tsp. salt
3 Tbs. sugar
3 tsp. cinnamon
1 tsp. vanilla extract

Directions:  Preheat oven to 350.  Mix softened butter, sugar, vanilla, and eggs well in a large bowl.  Combine flour, cream of tartar, baking soda, and salt in a separate bowl.  Blend dry ingredients into butter mixture.  Chill dough and chill an uncreased cookie sheet for about 10-15 minutes in the fridge.  Meanwhile, mix 3 Tbs. sugar and 3Tbs cinnamon in a small bowl.  Scoop 1 inch globs of dough into the sugar/ cinnamon mixture.  Coat by gently rolling balls of dough in the sugar mixture.  Place on unglazed cookie sheet and bake 10 minutes.  Remove from pan immediately.