Overnight oats

I was researching some breakfast ideas for when I have my friends staying over and I came across overnight oats. They really seem to be taking over breakfast tables across the world. For me it was a perfect solution as

Banana-rum-a flapjacks

The other day I was having this rum, brown sugar and banana based cocktail and I absolutely loved the flavour of it. I was thinking how I can turn that combination of flavours into a cake of some sort. Flapjack