These soft eggnog cookies are soft, fluffy, and packed with classic eggnog holiday flavor, then finished with a sweet eggnog icing made with real nutmeg and eggnog. They’re easy to make, perfect for Christmas cookie exchanges, and taste just like a cozy glass of eggnog in cookie form.
Take butter and eggs out of the refrigerator and leave it on the counter to get to room temperature for 30-45 minutes.
When the eggs are at room temperature, separate egg yolks from egg whites. (You can discard egg whites or use it to make an egg-white omelet or something else.)
Prepare cookie dough:
Preheat oven to 350°F and line a cookie sheet with parchment paper.
Beat butter and sugars together for a couple of minutes in an electric mixer on medium-high speed.
Scrape sides and bottom of the bowl and beat for another minute.
Beat in rum extract and egg yolks.
Lower the speed to low and mix in flour, baking powder, cinnamon, nutmeg, salt and eggnog.
Beat just until combined. Turn off the mixer, scrape sides and bottom of the bowl and make sure that all ingredients are mixed evenly.
Use a cooking scoop (preferably #50) to scoop cookie dough and quickly but gently roll it into a ball.
Place all rolled cookie dough onto the prepare baking sheet about 2 inches apart.
Baking:
Bake for 11-13 minutes, depending on the size of the cookie.
Cool cookies on a wire rack before adding icing.
Icing:
Place powdered sugar and ground nutmeg into a wide and shallow bowl.
Warm up eggnog for only a few seconds (until hot but not too hot where it's boiling) in a microwave and mix it into the powdered sugar.
Keep whisking until the icing in completely smooth.
Drizzle the icing over cooled cookies.
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Notes
Storing: You can store these cookies at room temperature WITHOUT icing or in the refrigerator. At room temperature, store them in an air-tight container for about 2 days. If you need to store them longer or with icing, place them in the refrigerator. Make sure to keep them in an air-tight container.
Freezing: You can store them even longer in the freezer. Freeze cooled cookies on the baking sheet for 2 hours and then transfer into a zip-top freezer bag. Get as much air out as you can and seal.