I'm lookin' for a good marble cake recipe.

I like to make a white cake from the cake mix doctor book, and then take some of the batter and mix chocolate syrup and cocoa powder into it and then marbel that into the cake pan...yummy!

For a denser cake I have always used the Duncan Hines pound cake recipe found on the yellow cake mix box. I would probably mix up another mix of chocolate and swirl it in. Duncan Hines also makes a marble cake mix that tastes really good. You might add the 4 oz box of pudding and extra egg to that mix.