Chocolate is Meghan, who is black. Harry is the ginger. Bananas is shagging.
Put them all together and bake, and you get a “homemade bun fresh out of the oven,” i.e., A BABY.
It’s a Sussex Baby Sex cake. I bet they thought it was absolutely hilarious. No wonder they were laughing and joking all through that engagement.
I’m half appalled because this was, after all, a formal royal engagement where they were representing the queen, and half admiring because they got Rebecca English to EAT that thing. I bet they got a good laugh out of that.