The Best Snickerdoodle Recipe Ever

Ingredients:
1/2 cup butter, softened
1 cup plus 2 tablespoons sugar, divided
1 egg
1/2 teaspoon vanilla extract
1 1/2 cups all-purpose flour
1/4 teaspoon baking soda
3/8 (1/4 +1/8) teaspoon cream of tartar
1 teaspoon ground cinnamon

Directions:
1. In a large mixing bowl, cream butter and 1 cup sugar until light & fluffy. Beat in egg and vanilla. Combine the flour, baking soda, and cream of tartar; gradually add to the creamed mixture. In a small bowl, combine cinnamon and remaining sugar.

2. Shape dough into 1-in. balls; roll in cinnamon-sugar. Place 2 in. apart on ungreased baking sheet. Bake at 375 for 8-10 minutes (I usually stick to 8 minutes.. because they harden as they cool).