1-Getting started with Cardamom Cake Eggnog Buttercream: begins with gathering your ingredients and tools for a smooth process. First, preheat your oven to 350°F (175°C) and position the rack in the center. Spray the bottoms of three 8-inch round cake pans with non-stick spray to prevent sticking, setting the stage for a fluffy cake base.

2-Next, whisk together the dry ingredients cake flour, granulated sugar, baking powder, baking soda, salt, ground cardamom, espresso powder, and ground nutmeg in a large bowl until well combined. Then, add the wet ingredients: whole milk, apple cider vinegar, brown sugar, eggs, vegetable oil, and vanilla extract. Whisk everything until smooth and mostly lump-free, dividing the batter evenly among the pans for even baking.

3-Bake the cakes for 22-25 minutes, checking with a tester to ensure they come out clean and the centers spring back when touched. While the cakes cool completely on wire racks, move on to the buttercream by beating softened butter in a stand mixer with the whisk attachment for about 1 minute until smooth. On low speed, mix in powdered sugar, meringue powder, salt, and ground nutmeg until combined, then add eggnog and vanilla extract.

4-Beat on medium-high speed for 4-5 minutes, scraping the bowl as needed, until the buttercream is light and fluffy. For the final step, fill, stack, and frost the cooled cakes with this buttercream. Remember, the total prep time is about 30 minutes, cook time around 30 minutes, and the whole process takes roughly 1 hour, serving up to 16 people with a festive, cozy flavor.