Ingredients
Equipment
Method
Make the dough
- Whisk the flour, baking powder, 1/2 teaspoon nutmeg, and salt together in a medium bowl.
- Beat the butter and granulated sugar in a large bowl with an electric mixer on medium speed until light and fluffy, about 2 minutes.
- Beat in the egg yolk, eggnog, and vanilla until combined; the mixture may look slightly curdled.
- Mix the flour mixture in on low just until no dry streaks remain.
- Cover the dough and refrigerate for 30 minutes.
Bake the cookies
- Heat the oven to 350°F.
- Line two 18x13-inch rimmed baking sheets with parchment paper.
- Drop rounded 1 1/2-tablespoon portions of dough onto the prepared sheets, spacing them about 2 inches apart.
- Bake for 10–12 minutes, switching the sheets between racks and rotating them front to back halfway through, until the edges are set and the centers look just set.
- Let the cookies cool on the baking sheets for 5 minutes.
- Transfer the cookies to a wire rack to cool completely.
Glaze the cookies
- Whisk the confectioners’ sugar, 2 tablespoons eggnog, and 1/8 teaspoon nutmeg in a small bowl until smooth.
- Drizzle the glaze over the cooled cookies.
- Let the glaze set before serving.
Notes
For the best finish, let the cookies cool completely before glazing. Store airtight at room temperature for up to 4 days; freeze unglazed cookies for up to 2 months. For a dairy-free version, use dairy-free butter and eggnog.
