Eggnog baked oatmeal is a cozy, holiday-inspired breakfast that’s creamy, spiced, and perfectly comforting. It combines the creamy flavor of eggnog with warm spices like cinnamon and nutmeg, all baked into hearty oatmeal for a dish that feels like a festive treat but is still wholesome and filling.
I love making this oatmeal when the weather gets chilly because it feels like a warm hug in a bowl first thing in the morning. The eggnog gives it a rich, slightly sweet flavor without needing a lot of extra sugar, and those classic spices make it smell amazing while it bakes. Plus, it’s super simple to put together, which is always a win on busy mornings.
When I serve eggnog baked oatmeal, I like to add a little extra sprinkle of cinnamon on top and sometimes a drizzle of maple syrup or a handful of chopped nuts for some crunch. It’s great on its own or with a splash of milk. This one definitely makes breakfast feel a bit more special, especially during the holiday season or anytime you want a little cozy indulgence.
Key Ingredients & Substitutions
Old-fashioned rolled oats: These give great texture and soak up the eggnog nicely. Quick oats can work in a pinch but may make the bake a bit softer.
Eggnog: It’s the star here, bringing creamy, sweet, and spiced flavor. If you don’t have eggnog, try using milk with a pinch of extra cinnamon and nutmeg instead.
Spices: Cinnamon and nutmeg give that cozy warmth. Feel free to add a pinch of ground cloves or ginger for a little twist.
Maple syrup or honey: These natural sweeteners keep it tender and add depth. You can adjust sweetness or swap for brown sugar if you prefer.
Butter: Adds richness and moistness. Use melted coconut oil for a dairy-free option.
How Can I Get the Baked Oatmeal Soft but Firm?
Baked oatmeal can be tricky to get just right. You want it soft inside but able to hold its shape when sliced. Here’s how to nail it:
- Use old-fashioned oats for the best texture — they absorb liquids slowly and keep some chew.
- Whisk the eggs well to help bind everything.
- Don’t overbake — 35-40 minutes at 350°F is just right. The edges turn golden and the center should feel set but still slightly soft.
- Let it cool a bit before slicing to let it firm up and hold its shape.
- If you want it more custardy, add a bit more eggnog or milk next time.
Equipment You’ll Need
- 9×9 inch baking dish – I use this size because it creates evenly baked squares and fits nicely in the oven.
- Large mixing bowls – for combining the dry ingredients and wet ingredients separately, making mixing easier.
- Whisk – to blend the eggs, eggnog, and liquids smoothly for a uniform batter.
- Measuring cups and spoons – precise measurements are key for the right texture and flavor.
- Grease or non-stick spray – to prevent sticking and make cleanup easier.
Flavor Variations & Add-Ins
- Chocolate chips or chopped nuts: Stir these into the batter for extra texture and flavor — chocolate for a treat, nuts for crunch.
- Different spices: Add a pinch of cloves or cardamom to enhance the warm, festive spices.
- Fresh or dried fruit: Top with sliced bananas, apples, or dried cranberries before baking for added sweetness and tartness.
- Mixed liquors or flavor extracts: A splash of bourbon or rum extract can add a cozy depth, perfect for holiday mornings.
Eggnog Baked Oatmeal
Ingredients You’ll Need:
- 3 cups old-fashioned rolled oats
- 2 teaspoons baking powder
- 1 1/2 teaspoons ground cinnamon
- 1/2 teaspoon ground nutmeg
- 1/2 teaspoon salt
- 3 large eggs
- 1 cup eggnog
- 1 cup milk (whole or your choice)
- 1/3 cup maple syrup (or honey)
- 2 teaspoons vanilla extract
- 4 tablespoons unsalted butter, melted (plus extra for greasing and topping)
- Optional toppings: additional maple syrup, a pat of butter, or a drizzle of icing glaze
Time Needed
This recipe takes about 10 minutes to prepare and 35-40 minutes to bake. Allow a few minutes to cool after baking before serving.
Step-by-Step Instructions:
1. Preheat and Prepare Your Dish:
Set your oven to 350°F (175°C). Grease a 9×9 inch baking dish with butter or non-stick spray to keep the oatmeal from sticking.
2. Mix the Dry Ingredients:
In a large bowl, combine the rolled oats, baking powder, cinnamon, nutmeg, and salt. Stir together to evenly distribute the spices.
3. Mix the Wet Ingredients:
In a separate bowl, whisk the eggs. Then add the eggnog, milk, maple syrup, vanilla extract, and melted butter. Whisk until everything is blended smoothly.
4. Combine All Ingredients:
Pour the wet mixture over the dry ingredients and stir gently until they are well mixed.
5. Bake the Oatmeal:
Pour the mixture into your prepared baking dish, spreading it out evenly. Place it in the oven and bake for 35-40 minutes, until the top is firm and slightly golden around the edges.
6. Cool and Serve:
Take the dish out of the oven and let it cool a few minutes before cutting into squares. Serve warm with your favorite toppings like butter, maple syrup, or icing glaze.
Can I Use Frozen Eggnog for This Recipe?
Yes, you can use frozen eggnog, but make sure to thaw it completely in the fridge overnight and give it a good stir before using. This helps keep the texture smooth in your baked oatmeal.
Can I Make Eggnog Baked Oatmeal Ahead of Time?
Absolutely! You can prepare and bake it the night before, then warm individual servings in the microwave or oven in the morning. It reheats well and tastes just as cozy.
How Should I Store Leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven with a splash of milk to refresh the creaminess.
Can I Substitute the Milk or Butter?
Yes! Use any milk you prefer, like almond or oat milk for dairy-free options. For butter, melted coconut oil works great for a similar richness and moisture.