What variety of orange works best?
I’ve have noticed the variety of orange can impart different qualities to the cake - Valencia is my favourite with it’s sweet tanginess, Navel work very well, as do Seville. I’ve also made a delicious version using blood oranges too.
Can I make this cake with lemons?
Lemons do not work I’ve found, while there’s a good lemon aroma to a version made with lemons, the flavour is a little sharp and quite bitter. That said, I did make a version with ‘Lima Dulce’ (Mexican sweet lime), also known as Persian sweet lime or Indian sweet lime, that was divine!