In a medium bowl whisk together the flour cornstarch baking powder baking soda and salt.
Marble cake round pan.
Grease and flour a 9 inch round pan.
Sift together cake flour baking powder and salt in a medium bowl and set aside.
Mix together all dry ingredients flour baking powder sugar and salt in a stand mixer with a paddle until fully combined.
Preheat oven to 350 f.
Line four 8 inch round cake pans with parchment rounds and grease with non stick baking spray.
I chose to bake this recipe up in 3 6 inch diameter round pans but it can also be made in 2 8 inch pans or 9 inch pans or you could make it in a 9 13 inch pan just be sure to adjust the bake times as needed if you re making it differently than what you see here.
You may cut down the chocolate portion to 1 3 of the batter.
Spray a 10 in 12 cup bundt pan generously with nonstick cooking spray with flour such as baker s joy or pam with flour.
Begin by making the vanilla cake batter.
In a large bowl beat the oil butter and sugar together until light and fluffy about 5 minutes.
How to bake marble cake.
You can use 1 regular loaf pan 9x5 inch 1 square pan 9x9 inch or 8x8 inch or 1 round pan to make this recipe.
See my 6 inch cakes for more information.
Variations for marble cake.
Preheat the oven to 350 f grease and lightly flour 2 9 inch round cake pans.
Cupcake recipes yielding 12 16 cupcakes fit wonderfully in 3 6 inch cake pans.
Preheat oven to 350 degrees f 175 degrees c.
I used 3 mini loaf pans to make the marble cake.
Butter and flour or generously spray with a non stick cooking spray a 10 cup bundt pan see note.
Marble with other flavors adding peppermint or almond extract to one of the batters try stirring in peanut butter powder give it a chocolate swirl and frost with peanut butter frosting.
Prepare two 8 inch round cake pans by buttering or spraying and then adding a piece of parchment to the bottom of the pan.
Preheat the oven to 325 f and set an oven rack in the middle position.
Make these marble cupcakes by filling your lined muffin tin 1 2 way with chocolate batter and a spoonful of vanilla batter.
If so use 1 tablespoon cocoa powder to mix the batter.
6 2 inch round pan holds 4 cups of batter the same as an 8 4 inch loaf pan.