Soft, pillowy snickerdoodles rolled in cinnamon sugar are a beloved family cookie with a tangy, buttery flavor. This classic American treat has a signature crinkled top and irresistible taste.
Preheat the oven to 375°F and line baking sheets with parchment paper.
Cream the unsalted butter and 1.5 cups granulated sugar together at medium speed until light and fluffy, about 3 minutes.
Add eggs one at a time, mixing thoroughly between additions, then stir in cream of tartar, baking soda, and salt.
Gradually add the flour, mixing just until the dough comes together; avoid overmixing.
In a small bowl, combine the ground cinnamon and 1.25 tbsp granulated sugar.
Roll tablespoon-sized balls of dough, then coat each generously in the cinnamon sugar mixture.
Place coated dough balls 2 inches apart on prepared sheets, bake for 8–10 minutes, watching for a crinkled top and set edges.
Let cookies cool on baking sheets for 3 minutes to set, then transfer to a wire rack to finish cooling.