Ingredients

The following ingredients have 22 Servings
  • 1 cup unsalted butter ((226g) softened to room temperature)
  • 1 ½ cups granulated sugar ((300g))
  • 1 large egg + 1 egg yolk
  • ¼ teaspoon vanilla extract
  • 3 cups all-purpose flour
  • 1 ½ teaspoon cream of tartar
  • 1 teaspoon cornstarch
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • ½ teaspoon ground cinnamon
  • ½ cup granulated sugar ((50g))
  • 1 Tablespoon ground cinnamon

Instruction

  • Preheat oven to 350F¹ (175C) and line cookie sheets with parchment paper
  • In stand mixer or with hand mixer cream butter and sugar together on medium-low speed until combined.
  • Add egg, egg yolk, and vanilla extract, stirring again until combined. Pause to scrape down the sides and bottom of the bowl as needed.
  • In separate bowl, whisk together flour, cream of tartar, cornstarch, baking soda, salt, and cinnamon.
  • With mixer on low speed, gradually stir flour mixture into your butter mixture until completely combined (the dough becomes fairly thick, and you will need to scrape the sides/bottom of the bowl several times to ensure it is well combined).
  • In a separate small bowl, stir together cinnamon and sugar for rolling. 
  • Roll dough into 1 ½ Tablespoon-sized balls and roll in your cinnamon/sugar mixture. 
  • Place on prepared cookie sheets and bake on 350F (175C) for 11-12 minutes, the centers may appear slightly under-done still and that is OK! Allow cookies to cool completely on baking sheet where they will finish baking without drying out or becoming hard or crumbly.