Beat together 1 stick of soft unsalted butter and ¾ cup of white sugar in a stand mixer with paddle attachment until light and fluffy
Add 1 egg and 1 teaspoon of vanilla extract to the mixture
In a separate bowl, combine 1 ⅓ cups flour, 1 teaspoon baking powder, ½ teaspoon salt, and 1 teaspoon cream of tartar
Add the dry ingredients to the wet ingredients and mix until combined
In a bowl, mix together 1 cup of white sugar and 1 tablespoon of cinnamon
Scoop dough using a No. 40 cookie scoop and roll in the cinnamon sugar mixture
Place on a baking sheet lined with parchment paper
Bake at 400°F for 8-10 minutes until edges are crispy and centers are soft and fluffy
