Ingredients

• ¾ cup (1 ½ sticks) unsalted butter, softened
• 1 ½ cups granulated sugar
• 2 eggs
• 2 teaspoons pure vanilla extract
• 2 ¼ cups all-purpose flour
• 1 teaspoon cream of tartar
• ½ cup unsweetened cocoa powder
• 1 teaspoon salt
• ½ teaspoon baking soda

Coating:

• 3 Tablespoons granulated sugar
• 1 Tablespoon ground cinnamon

Instructions

1. Preheat oven to 375 degrees F. Line a large baking sheet with parchment paper. Set aside.
2. In a large bowl, using an electric mixer, beat together butter and 1 ½ cups sugar until completely creamed.
3. Add the eggs and vanilla and continue to mix until well incorporated.
4. In a medium bowl, combine flour, cream of tartar, cocoa powder, salt and baking soda. Add flour mixture to butter mixture and mix until just combined.
5. On a small plate, combine sugar and cinnamon for the coating. Shape the dough into 1-inch balls and then roll in the cinnamon/sugar mixture to coat thoroughly. Place the balls of dough about 2 inches apart on the prepared baking sheet.
6. Bake for approximately 6-8 minutes. Do not over-bake.