When the cake layers come out of the oven, the edges should be set while the centers stay tender—not dry or crumbly. That’s the texture I want in this spiced eggnog cake, especially once there’s a soft layer of buttercream between the rounds. The eggnog gives the cake its gentle custard-like warmth, while cinnamon and nutmeg make each bite taste unmistakably seasonal without overpowering it.
I use oil instead of creamed butter in the cake batter, which keeps the mixing straightforward and the crumb moist. Whisk the wet ingredients into the dry ingredients only until the flour disappears; a long mixing session isn’t needed here. The eggnog buttercream adds a second, creamier hit of that familiar flavor, and the finished cake slices neatly when the layers are cool before frosting.
Kitchen Note
Let both layers cool completely before you bring out the buttercream. Even a slightly warm center can soften the frosting and make the top layer slide as you spread it.
Save this spiced eggnog cake with its soft layers and eggnog buttercream for your next cozy celebration.
Why This Cake Batter Needs Less Mixing Than You Think
This batter doesn’t start with creamed butter and sugar. The oil, eggs, and eggnog are whisked together separately, then added to the flour mixture. That means you’re not trying to build volume by beating the fat and sugar; the baking powder and baking soda do the leavening work.
Once the wet mixture meets the flour, mixing longer than necessary can develop gluten and leave the cake tighter than it should be. Stop when you no longer see dry flour. A few small lumps are less concerning than a bowl of batter that’s been whisked until perfectly smooth. Dividing the batter evenly between the pans also helps the layers finish at about the same time, so one doesn’t dry out while you wait for the other.
The balance of baking powder and baking soda gives the cake lift, while the eggnog and oil keep the crumb tender. Those ingredients work best when you let the batter stay simple: combine, portion, and bake without an extra round of beating.
What Eggnog, Oil, and Butter Each Bring to This Cake
- Eggnog — It brings both moisture and the cake’s defining flavor, then carries that flavor into the buttercream. Choose an eggnog whose taste you enjoy on its own; a mild carton makes a milder cake and frosting. The cake uses eggnog in the batter, and the remaining portion goes into the frosting.
- Neutral oil — Oil keeps the cake crumb moist without needing a creaming step. Canola oil is one suitable choice; a strongly flavored oil would compete with the cinnamon and nutmeg, so keep this ingredient neutral.
- All-purpose flour — It gives the layers enough structure to stack and hold the buttercream. Stick with all-purpose flour for the texture and proportions here; a direct swap to a different flour can change how the cake sets.
- Room-temperature eggs — They whisk more readily with the eggnog and oil than cold eggs straight from the refrigerator. Set them out ahead of mixing so the wet ingredients come together evenly.
- Cinnamon and nutmeg — These ground spices provide the warm, familiar eggnog-cake character. Fresh containers with a clear aroma make a bigger difference than choosing an expensive brand; stale spices won’t taste as lively.
- Unsalted butter and powdered sugar — Softened butter gives the frosting its creamy base, and powdered sugar makes it spreadable. For the smoothest result, use butter that yields when pressed but hasn’t melted, and add the sugar gradually.
From Even Layers to Fluffy Eggnog Buttercream
Set up the pans and whisk the dry ingredients
Heat the oven to 350°F. Coat two 8-inch round cake pans with nonstick cooking spray and line the bottoms with parchment rounds; the parchment helps the cakes release cleanly. Whisk the flour, sugar, baking powder, baking soda, cinnamon, nutmeg, and salt together in a large bowl. Break up any visible clumps before you add the wet mixture.
Bring the wet mixture into the flour
In a separate bowl, whisk the eggs, 1 cup of eggnog, and oil until blended. Pour that mixture into the dry ingredients and whisk just until no dry streaks remain. Scrape the bottom of the bowl once if flour is hiding there, but don’t keep beating to chase every small lump. Divide the batter evenly between the prepared pans.
Bake until the centers are set
Bake the layers for 27–32 minutes. Start checking near the earlier end of that range: a toothpick inserted in the center should come out clean or with a few moist crumbs, not wet batter. If the tester still has batter on it, give the cakes more time and check again. Cool them in the pans for 10 minutes, run a knife around the edges, then turn them onto wire racks to cool completely.
Beat the frosting and stack the cake
Beat the softened butter in a large bowl with an electric mixer on medium speed until creamy, about 2 minutes. Add the powdered sugar gradually on low speed, then add the vanilla and remaining 1/4 cup eggnog. Beat on medium-high for 2–3 minutes, until fluffy and spreadable. Set one cake layer on a serving plate, spread about 1 cup of buttercream over it, add the second layer, then cover the top and sides with the remaining frosting.
Three Ways to Adapt the Finish Without Losing the Eggnog Character
A dairy-free version
Replace the eggnog with an equal amount of plant-based eggnog, and use dairy-free stick butter in the same amount as the unsalted butter. The frosting may be a little less rich, so choose a butter alternative made for baking rather than a soft tub spread. The cake still contains eggs, so this adaptation is dairy-free, not vegan.
Leave the sides bare
For a more casual layer-cake finish, spread the filling between the layers and frost the top, leaving the sides uncovered. You’ll see the cinnamon-colored cake at the edges, and the frosting is concentrated where it meets each slice.
Serve it as an unfrosted spice cake
Bake the cake layers and skip the buttercream for a simpler, less-sweet dessert. The cake keeps its eggnog and spice notes, but you lose the creamy frosting between bites. This option works well when you want the cake itself to take center stage.
Storage and Reheating
- Refrigerator: Keep the frosted cake covered and refrigerated for up to 3 days. The buttercream will firm up when cold.
- Freezer: Unfrosted cake layers freeze well for up to 2 months when wrapped individually and sealed in a freezer-safe container. Thaw them in the refrigerator before frosting.
- Reheating: This cake doesn’t need reheating. Let a chilled slice sit out briefly before serving; don’t leave the cake at room temperature for more than 2 hours.
Questions That Come Up While Baking This Eggnog Cake
Spiced Eggnog Cake with Eggnog Buttercream
Ingredients
Equipment
Method
- Heat the oven to 350°F.
- Grease two 8-inch round cake pans with cooking spray and line the bottoms with parchment rounds.
- Whisk the flour, sugar, baking powder, baking soda, cinnamon, nutmeg, and salt in a large bowl.
- In a separate bowl, whisk the eggs, 1 cup of the eggnog, and oil.
- Pour the egg mixture into the dry ingredients and whisk just until no dry streaks remain.
- Divide the batter evenly between the prepared pans.
- Bake for 27–32 minutes, until a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Cool the cakes in the pans for 10 minutes.
- Run a knife around the edges of the cakes.
- Turn the cakes out onto wire racks and cool completely.
- Beat the butter in a large bowl with an electric mixer on medium speed until creamy, about 2 minutes.
- Add the powdered sugar gradually on low speed.
- Add the vanilla and remaining 1/4 cup eggnog.
- Beat on medium-high until fluffy and spreadable, 2–3 minutes.
- Place one cake layer on a serving plate and spread about 1 cup of buttercream evenly over the top.
- Set the second layer on top.
- Spread the remaining buttercream over the top and sides of the cake.
