Ingredients:

  • 1 cup unsalted butter, softened to 65°F
  • 1.5 cups granulated sugar
  • 2 large eggs, room temperature
  • 2 tsp vanilla extract
  • 2.75 cups all-purpose flour, spooned and leveled
  • 2 tsp cream of tartar
  • 1 tsp baking soda
  • 0.5 tsp fine sea salt
  • 0.25 cup granulated sugar (for coating)
  • 2 tbsp ground cinnamon

Instructions:

  1. Cream the softened butter and 1.5 cups of granulated sugar in a stand mixer on medium-high for 3-4 minutes until pale and fluffy. Add eggs one at a time, followed by the vanilla extract, beating until a smooth emulsion forms.
  2. In a separate bowl, whisk together the flour, cream of tartar, baking soda, and sea salt. Gradually add these dry ingredients to the butter mixture on low speed, mixing only until no flour streaks remain.
  3. Refrigerate the dough for at least 30 minutes to improve texture and prevent spreading.
  4. Preheat oven to 350°F. In a small bowl, combine the remaining 1/4 cup sugar and 2 tablespoons of cinnamon.
  5. Scoop 2-tablespoon portions of chilled dough and roll into smooth spheres. Roll each ball thoroughly in the cinnamon-sugar mixture until coated.
  6. Place balls 2 inches apart on aluminum baking sheets and bake for 10 minutes until the edges are set and the tops have crackled.