I tasted the best cake I have ever had in my life yesterday!

But my (Filipino) friend said she has no idea what it is called. She says it is a traditinal celebration cake but she has never made it and only ever buys it. All her friends said the same thing.

It looked like a sponge baked in custard. It was almost flan like but definitely spongy instead of all custard but the sponge was extremely light and soft and moist with the custard.

Anyone know what it is called?