I've got 3 limes and 3 lemons. What shall I cook?

[PotholePalace]

I ordered a bag of fruit and vegetables from a local pub. They've delivered a random selection, most of which I can use in normal meals, or once I run out of ideas, in a curry.

There are 3 healthy looking limes and lemons so would like to make something treaty from them. I've got small amounts of plain and SR flour, eggs, baking powder, sugar, sultanas, marzipan, even some icing sugar. What would you suggest?

[MooseBeTimeForSummer]

Delia’s citrus pudding makes its own sauce but uses orange as well.