I've posted previously about my marble cake coming out really dry even though the individual recipes never have that problem. I thought at the time that maybe I had goofed one recipe or the other and that was the problem. So this time I made sure to pay really close attention and get both recipes exactly right... and I still got a crazy dry cake. Here are the two recipe's I am marbling (both are Cake Mix Dr recipes):

Chocolate
1 box Devil's food cake mix
1 C. Sour Cream
1/2 C. Water
1/2 C. Oil
4 eggs

Butter
1 box white cake mix
1 stick butter
1 C. milk
3 eggs
2 tsp. vanilla

Can anyone tell me what might be causing this combo to be so dry?? Or suggest what I might do to moisten it up?? More oil? More sour cream? Less something?? Any help is appreciated!

Thanks!

A box of pudding might help - I never make cake anymore without it (unless it's for someone with a milk product allergy)

Try making the fudge marble from your favorite yellow or butter cake that has the moisture you like. Separate 30% to 40% of the batter and add powdered cocoa to taste. Then marble. It will turn out perfect.

Don't put more oil in! What temp are you baking at and how long are you baking? What brand cake mix... store brand by chance?

I've never used the recipes you're using, but I see no reason they shouldn't work.

I always bake at 325º

Try the cake dr. chocolate "better than sex" cake. She does add instant pudding mix in additon to what you have in your ingredient list.

Only a 1/4 cup water too. Sorry I just realized that.