Ingredients
Method
- In a medium bowl, whisk together the flour, cream of tartar, salt, and baking soda until evenly combined.
- In a large bowl, beat the butter and 1 1/4 cups sugar together with a mixer on medium-high speed until pale and fluffy (2–3 minutes).
- Add eggs one at a time, mixing well after each. Stir in vanilla extract until smooth.
- Reduce speed to low and slowly add the dry ingredients. Mix just until combined. Cover and refrigerate for at least 1 hour (or overnight).
- Preheat oven to 350°F (175°C). Line baking sheets with parchment paper. In a small bowl, combine 1/4 cup sugar and cinnamon.
- Roll 2-tablespoon portions of dough into balls and coat in the cinnamon-sugar mixture. Place 2 inches apart on baking sheets.
- Bake 10–12 minutes, rotating halfway through. Let cool 5 minutes on the sheet before transferring to a wire rack.
Notes
Chill the dough to prevent spreading and improve flavor. For a flavor twist, add a pinch of nutmeg or use brown butter for a richer taste. To freeze, store dough balls in a sealed bag for up to 2 months.
