A classic marble cake that is as delicious as it is easy to make. This is a recipe from Carol Bloom's The Essential Baker with a minor tweak or two, and the cake is one you can serve for any occasion.
Preheat oven to 350°F. Line the cake pans with butter and parchment circles.
Cream the butter or 2 minutes in a stand mixer fitted with the paddle attachment. Add the sugar and continue creaming until light and fluffy, scraping down bowl as needed, about 2 more minutes. Lower speed and add each egg, one at a time, blend until incorporated and scrape bowl as needed.
Mix together the milk and vanilla in a measuring cup.
In a bowl, whisk together the dry ingredients. Add this to the butter mixture, alternating with the milk mixture. Start and end with the dry ingredients. Scrape bowl as needed.
Pour the two batters into the pans and swirl together to make the marbling. Bake for about 20 to 30 minutes, depending on the size of the pan
Spread mocha buttercream on cake. I used a cake comb to create the swirl effect.
Notes
*I can't share the recipe for Sarah's chocolate frosting (which you see in the photos above) because it's from her cookbook, but the mocha buttercream I link above is a good alternative.