This cake (I call it my Un-Party Cake because I didn’t have a specific occasion to make it for) is the result of a bunch of different situations– first (of course), we’re stuck inside due to coronavirus, so grocery shopping isn’t as easy as it used to be.
Second, the other day I was making egg salad and realized that we were out of mayonnaise, so I made some from scratch (fun!). However, that left me with a bunch of extra mayo on hand that I had no immediate use for, and to keep it from going bad I decided to use it to make a cake. It had to be chocolate, because I’d used a touch of mustard in making the mayonnaise to help it emulsify, and I was worried that the flavor might come through in a vanilla cake.
Third, I had plenty of random stuff available to garnish this cake– half a can of chocolate frosting left in the refrigerator that I could use as the base for a larger batch, some seedless raspberry jam I wanted to use up (because I prefer the flavor of the seeded kind), and the dregs of various packages of cookies and candy that had been pushed to the back of our pantry over time. So we got to work.