This Easy Marble Bundt Cake is a delicate dance of rich chocolate and buttery vanilla batters. A classic, moist, tender dessert with a beautiful marbled pattern that is as lovely to look at as it is to eat.
Preheat the oven to 350 degrees F (180 degrees C).
Sift the flour with the baking powder and salt in a medium-sized bowl and set aside.
Using an electric hand mixer or stand mixer cream the butter with the sugar and the oil.
Add the eggs one at a time, adding the vanilla extract with the last egg.
Add the flour mixture in three batches, alternating with the milk until they are incorporated. You should start and end with the flour mixture. Use a spatula to scrape the bottom and sides of the bowl. Do not overmix!
Pour half of the batter into a separate bowl (It doesn't have to be precise). Fold the cocoa powder into this batter until it is well combined.
Pour a layer of the vanilla batter into a prepared 10-inch Bundt pan. Spoon the chocolate batter on top. Finish with the remainder of the vanilla batter. Gently swirl the two batters together with a chopstick or a butter knife.
Bake the cake for 35-40 minutes or until a toothpick inserted in the center comes out clean. Let the cake cool completely on a wire rack before serving.
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Notes
*You can melt 5-6 ounces (142-170 g) of semisweet chocolate chips in the microwave or use a double boiler to make the chocolate batter instead of using cocoa powder.
To make a two-layer cake, divide the batter into two 9-inch (23 cm) round pans and bake for about 30 minutes.
This batter can also be made in a 9x13-inch (23x33 cm) sheet pan. Bake for about 30-35 minutes.
To make it into cupcakes, line a cupcake pan with liners and spoon each batter in layers. Fill only until halfway and swirl with a toothpick. Bake for about 20 minutes
Store this cake in an airtight container for up to 2-3 days at room temperature. It will last for up to 4-5 days in the refrigerator but keep in mind that cold temperatures will dry out the cake.