Family Tested & Approved
Combine 1 cup sugar and butter and beat until well blended.
Add the egg and vanilla; mix well.
Add flour, baking soda and cream of tartar. Blend until combined.
Cover and chill 10 minutes.
Preheat oven to 375 degrees.
Combine 1/4 cup sugar and cinnamon in a small bowl.
Line cookie sheet with parchment paper.
Shape dough into 1-inch balls. Roll balls in cinnamon sugar. Place on cookie sheet.
Flatten balls with bottom of a glass. If glass becomes too sticky dip in cinnamon sugar first.
Bake for 10 minutes. Let cool for 2 minutes before removing from cookie sheet.