Step 1

Preheat the oven to 400 degrees and line baking sheets with parchment paper. Mix 2 teaspoons cinnamon and 1/4 cup sugar in a small bowl. Set aside.

Step 2

Beat butter and sugar together using an electric mixer or stand mixer. Beat in eggs and vanilla.

Step 3

Mix in cream of tartar, salt, baking soda and flour.

Step 4

Scoop cookie dough using a 3 Tbsp. scoop (large cookies) or 2 Tbsp. scoop (regular cookies). Roll cookie dough balls in cinnamon and sugar mixture then place onto baking sheets.

Step 5

Bake cookies 10-11 minutes for large cookies or 8-9 minutes for regular cookies.

Step 6

Imediately remove cookies from baking sheet and transfer to a wire cooling rack.