For an extra touch of flavor, add a teaspoon of instant espresso powder to the chocolate batter. If you don't have buttermilk, you can make a substitute by adding 1 tablespoon of white vinegar or lemon juice to a measuring cup and then filling it with milk to the 1-cup line. Let it sit for 5 minutes before using. To prevent the cake from browning too quickly, tent it with foil during the last 15-20 minutes of baking.
Paolo Hoppe
Jun 23, 2025I've made this cake several times, and it's always a hit! It's easy to make and always turns out perfectly.
Vito Sanford
Jun 2, 2025My family loved this cake. It was moist and delicious, and the chocolate swirl added the perfect amount of richness.
Yazmin Gerhold
May 14, 2025This cake was a showstopper! The marble effect was so pretty, and it tasted amazing.