Eggnog Iced Oatmeal Cookies
Published on December 09, 2025
Quick Summary
Cozy up this holiday season with Eggnog Iced Oatmeal Cookies! Soft, chewy brown butter oatmeal cookies topped with a creamy eggnog glaze make the perfect festive treat for the holiday season. Easy to make and irresistible to eat, these cookies bring classic holiday flavors to every bite.
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Pin ItEggnog Iced Oatmeal Cookies: Cozy, Chewy, and Full of Holiday Cheer
I’ve always loved my classic iced oatmeal cookies—they’re nostalgic, cozy, and one of those recipes that instantly transports me back to childhood. So this year, I decided to give them a festive holiday twist, and wow, these Eggnog Iced Oatmeal Cookies might be my new seasonal obsession.
The base is everything I love about an oatmeal cookie: soft, chewy, and packed with warm spices. I brown the butter first, which adds a deep, nutty flavor that makes the cookies extra special. And to take things fully into holiday territory, I dip each cookie into a sweet, creamy eggnog icing.
Now… I have to be honest. Eggnog itself isn’t really my thing. I know it’s a classic holiday flavor, but you’ll never find me sipping it straight from the carton. But these cookies? I LOVE them. The glaze is subtle, perfectly spiced, and it pairs beautifully with the brown butter oatmeal cookie. They taste like Christmas in every bite, and they’re so pretty once the icing sets up.
Whether you’re baking for a cookie swap, holiday party, or just want a treat that brings instant holiday cheer, these cookies are guaranteed to be a hit. Trust me—you don’t have to be an eggnog lover to fall in love with them!
Ingredients & Helpful Notes
For the cookies:
- Butter: Browning the butter gives a nutty, caramel-like flavor that takes these cookies to the next level.
- Oats: Pulse some of the oats in a food processor to create a mix of chopped oats and oat flour for the perfect chewy texture.
- Flour: Use all-purpose flour for a classic cookie structure.
- Spices: Cinnamon and nutmeg bring that cozy holiday vibe. Don’t skip them!
- Sugar: A combination of brown and granulated sugar gives soft, chewy cookies with slight caramel notes.
- Eggs: Room temperature eggs mix better and help achieve a tender texture.
- Vanilla: Pure vanilla extract makes a noticeable difference in flavor.
For the eggnog icing:
- Confectioner’s sugar: Provides a smooth, creamy base for the glaze.
- Eggnog: The star of the show! Adds classic holiday flavor; adjust for thickness.
- Vanilla & salt: Enhance the sweetness and balance the flavors.
Tips for Making the Cookies
- Brown the butter carefully: Stir often and watch for it to foam, it will brown quickly after that!
- Don’t overmix the dough: Once you add the dry ingredients, stir until just combined to keep the cookies soft.
- Chill the dough: Chill for 30 minutes before baking. This will prevent spreading. You can chill the dough for up to 72 hours.
- Bake just until edges are golden: Centers should still look soft, cookies continue to set as they cool.
- Dip carefully: Let cookies cool completely before icing, and allow excess glaze to drip off for a neat finish.
How to Store
- Let the icing set up on the cookies and then store in an airtight container at room temperature for up to 5 days. If you are stacking, place parchment paper or wax paper between the cookies.
- These cookies also freeze beautifully. Freeze after the icing is set in freezer containers for up to 3 months.
Eggnog Iced Oatmeal Cookies
Ingredients
For the cookies:
- 3/4 cup unsalted butter, cut into tablespoon pieces
- 1 1/4 cup old fashioned oats
- 1 1/4 cups all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 3/4 cup packed dark brown sugar
- 1/4 cup granulated sugar
- 1 egg + 1 egg yolk
- 2 teaspoons pure vanilla extract
For the eggnog icing:
- 1 1/3 cups confectioner’s sugar
- 3 to 4 tablespoons eggnog
- 1/4 teaspoon pure vanilla extract
- Pinch of salt
Instructions
- Brown the butter. Place the butter in a medium saucepan and melt over medium heat, stirring often, until it foams, smells nutty, and browns. This will take about 5 minutes. Scrape the browned butter into a large mixing bowl and set aside to cool to room temperature. You can put the bowl in the fridge to speed up the cooling process.
- Make the cookie dough. Add the oats to a food processor and pulse about 8 times. You want a mix of chopped oats and oat flour.
- In a medium bowl, combine the oats, flour, baking soda, salt, cinnamon, and nutmeg. Stir and set aside.
- Add the sugars, egg, egg yolk, and vanilla to the browned butter. Use a spatula to stir until ingredients are well combined.
- Add dry ingredients and stir until just combined. Don’t over mix. Chill the dough for 30 minutes. You can chill for up to 72 hours.
- When ready to bake, preheat the oven to 350 degrees F. Remove the dough from the fridge and let come to room temperature while the oven preheats.
- Scoop the cookie dough into balls, about 1 ½ tablespoons of dough per cookie, and place about 3 inches apart on baking sheets that have been lined with parchment paper.
- Bake for 10 to 12 minutes or until lightly browned on the edges, but still soft in the centers. Don’t over bake. Remove the cookies from the oven and let cool on the baking sheet for 5 minutes. Transfer to a cooling rack to cool completely.
- Make the icing. In a medium bowl, whisk together the confectioner’s sugar, 3 tablespoons eggnog, vanilla, and salt. Whisk until the icing is smooth. You want the icing to be thick, but if it is too thick, add 1 more tablespoon of eggnog and whisk again.
- Dip the tops of the cooled cookies into the icing and let the excess drip off. Set the dipped cookies on a wire cooling rack and let sit until the icing sets up.
Notes
- Store cooled cookies in an airtight container at room temperature for up to 5 days.
- These cookies also freeze beautifully. Freeze after the icing is set in freezer containers for up to 3 months.
Nutrition
Have you tried this recipe?
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More Christmas Cookie Recipes
- Easy Sugar Cookies
- Snickerdoodle Cookies
- Iced Oatmeal Cookies
- Brown Butter Salted Caramel Snickerdoodles
- Thumbprint Cookies
If you need even more cookie inspiration (you can never have too many!), don’t miss my Christmas Cookie Roundup. You can also browse all of my Cookie Recipes!
