• Preheat oven to 375℉.
• In a large bowl, mix the butter and sugar until well-creamed. Add the eggs and beat well.
  1 cup butter, softened (or use 1/2 c. butter & 1/2 c. Crisco), 1 1/4 cup sugar, 2 large eggs
• Mix the dry ingredients in a separate bowl. Add them to the wet mixture and mix to combine.
  2 3/4 cup all-purpose flour, 2 teaspoon cream of tartar, 1 teaspoon baking soda, 1/2 teaspoon salt, 1 - 2 teaspoon ground cinnamon
• Scoop into approximately 1 1/2" balls and roll them into the cinnamon sugar mixture. Bake on greased cookie sheets for approximately 10 minutes or until lightly browned.
• Let the cookies rest on the tray for a minute, then remove them to a wire rack to cool, and store in an airtight container. Freeze cookies to keep them fresh.
• To make bars instead of cookies, spread the dough into a greased 9x13" baking pan, sprinkle the cinnamon sugar mixture over the top (you may want to reduce the amount of cinnamon and sugar), and bake at 350℉ for approximately 25 minutes or until set.

Cinnamon Mixture:

• Mix the cinnamon and sugar in a small bowl, and roll the balls in it before baking.
  1/4 cup sugar, 1 Tablespoon cinnamon