Heat oven to 400ºF.

Sift together flour, cream of tartar, baking soda and salt. Set aside.

Beat sugar, butter and eggs in large bowl. just until well-combined Add flour mixture.

Shape dough into 1 1/4-inch balls. Or use #50 scopper.

For coating: Mix 1/4 cup sugar and the cinnamon. Roll balls in cinnamon-sugar mixture. Place 2 inches apart on ungreased cookie sheet.

Bake 8 to 10 minutes or until set. Remove from cookie sheet to wire rack.

Marys Notes: Using #70 disher, made 33 cookies. A little small so try #50 next time. Cookies were just OK. Might have creamed the wet ingredients too much because dough was very fluffy. Above recipe has 1/2 tsp vanilla added as in other recipes. Also upd the cinnamon to 3 teaspoons