Preheat the oven to 375°F. Lightly grease or line 2 baking sheets or cookie sheets with parchment paper.
Sift together into a medium bowl:
Beat in a large bowl, or in a stand mixer with the paddle attachment, until light and fluffy:
Add and beat to combine:
Beat in:
Add the flour mixture and beat until the dough is smooth. Portion the dough by the rounded tablespoon and roll into balls, then roll the balls in:
Place about 1 inch apart on the baking sheets, then flatten the balls with a glass. Bake until set and barely light brown around the edges, about 10 minutes, switching oven racks and rotating the sheets halfway through. Let cool for 2 or 3 minutes on the sheets, then transfer to a wire rack to cool completely.