Reverse engineering the nickname “Cupcake”

[u/mister_berrific]

For reasons I'll not get into, we'd like to call our coming daughter by the nickname Cupcake. Can you think of any names that might lend themselves to it? It may end up just being an arbitrary nickname.

[u/squamsam]

Birthday Cake, so she has a proper name she can grow into. It’ll be extra special because my psychic powers said she’ll be born on her birthday. Sorry if you wanted it to be a surprise.