2 3/4 cups all purpose flour
2 teaspoons baking powder
1/2 teaspoon salt
1 cup (2 sticks) unsalted butter, softened
1 1/2 cups sugar
2 large eggs
2 tablespoons sugar
2 teaspoons ground cinnamon
1. Preheat oven to 350F. Sift together flour, baking powder and salt; set aside. Put butter and 1 1/2 cups sugar in the bowl of an electric mixer fitted with the paddle attachment. Mix on medium speed until pale and fluffy, about 3 minutes. Mix in eggs. Reduce speed to low; gradually mix in flour mixture.
2. Stir together cinnamon and remaining 2 tablespoons sugar in a small bowl. Shape dough into 20 (1 3/4-inch) balls; roll in cinnamon sugar. Space 3 inches apart on baking sheets lined with parchment paper.
3. Bake cookies, rotating sheets halfway through, until edges are golden, 12 to 15 minutes.