For those looking to imitate the sort of chocolate cake you get from a boxed mix, or you want a chocolate sheet cake like like you’d get from a larger commercial bakery, this is your ticket. This cake has the tight crumb and relative durability you want, plus it bakes up well in broad cake pans. This formula is enough for one 11″ x 14″ x 2″ sheet cake pan or three 8″ x 2″ round layer pans. It can be easily scaled up or down depending on your needs.
As with the high ratio yellow cake recipe, emulsification is king here. The recipe is built accordingly, making a process allowance for the cocoa powder. An interesting feature of cocoa powder is that it delivers double the chocolate flavor if you combine it with boiling milk or water before you add it to your mix (another trick from the world of box cake formulators). Since I can’t abide wasting perfectly good chocolate flavor, I’ll be doing that.
I should add that this cake can be made with butter if you wish. As it is it won’t be exactly like a commercial cake because most of us don’t have access to emulsified shortening or high ratio flour, which are usually used to make high ratio cakes. But butter will work here. For more moisture you can substitute oil for some of the fat (olive oil is best since it also adds emulsifiers and tightens the crumb. This recipe will make one 11″ x 14″ x 2″ sheet cake or three 8″ round layers.