I did a trial run of this cake over the weekend. WHOA. Very moist, very rich and chocolately and peanut buttery. I think it's a winner!
This cake can easily feed 12 people. A small slice is all you need to satisfy your sweet tooth. I found the recipe on the King Arthur Flour website here. I actually doubled the cake portion of the recipe to make 2 full layers (rather than cut the layer in half as the recipe calls for).
I'm hoping this cake will raise a nice chunk of change to help the horses.