As promised, here is the Hot Chocolate Cake recipe. This is a doctored box mix cake that turned out fabulous! Really, really, good. I don't usually like chocolate cake, but this one was great. It was moist and dense in all the right places. I served it with chocolate buttercream icing. My 8 year old decided on the the flavor, just assuming I could make it happen! I was pretty relieved when it came out delicious - nothing like letting your foodie child down. He would have been the first person to tell me if it was terrible.
Hot Chocolate Cake
1 box of chocolate cake mix, regular chocolate or devil's food
1/2 c water
1 c buttermilk
1/3 c vegetable oil
1 sm box pumpkin pie instant pudding mix (if you can't get this substitute 1 box chocolate or vanilla pudding mix and 2 tsp cinnamon)
1/2 c semi sweet chocolate chips
1 c mini marshmallows or cut up large ones
Put chocolate cake mix, eggs, water, buttermilk, oil and pudding in mixer bowl. Beat as directed on the cake mix box. Then add the chocolate chips and marshmallows and stir. Pour cake mix into greased cake pans and bake as directed on your cake mix box according to your cake pan size.
I used this to make my Magic Tree House birthday cake and it was moist and delicious. I frosted it with a chocolate buttercream icing.