How to Make It
Place first 7 ingredients in the bowl of a stand mixer fitted with a whisk attachment; beat at medium speed until combined. Add butter; beat 2 minutes, scraping sides of bowl as needed. Add molasses and milk; beat just until combined. Divide dough into 2 portions; wrap each portion in plastic wrap. Chill 2 hours or until firm.
Preheat oven to 350°F.
Line 3 baking sheets with parchment paper. Shape dough into 36 balls (1 tablespoon each). Place granulated sugar in a small dish. Place powdered sugar in a small dish. Roll each ball in granulated sugar, then powdered sugar. Place 2 inches apart on baking sheets. Bake at 350°F for 12 minutes or until set but slightly soft in the center. Cool 5 minutes on wire racks before serving, or cool completely before packaging.