The BEST Snickerdoodles - Chewy and Soft with Crisp Edges

Ingredients

• 2 3/4 cups all-purpose flour (or a gluten-free flour blend)
• 1 1/2 teaspoon cream of tartar
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup unsalted butter, softened
• 1 cup white sugar
• 1/2 cup light brown sugar
• 2 teaspoons vanilla
• 2 eggs
• For topping: 1/4 cup white sugar
• 1 Tablespoon ground cinnamon