I'm sure I've posted the recipe for flourless orange and almond cake in one of the recipe threads but I can't find it. It uses almond meal or processed almonds for a crunchier texture, a whole orange boiled and then processed, a couple of extra eggs to hold it all together, and I always put about a third of the recipe-recommended sugar in it or I could use a sugar substitute. It needs a bit of sweetness to offset the tangy orange flavour. It can be served with orange syrup but maybe orange juice with a bit of gelatine in it would work.

I can post the recipe in this thread if you are interested. There are other fruits which can be used instead of oranges, too. I've done it with pureed apple, or peaches etc. It is higher in fibre than a flour-based cake, nuts are nutritious, it is delicious, and most of all it's quick to prepare in a food processor but it does cook slowly (approx one hour) because of the extra eggs.

It's my go-to recipe for morning teas or any occasion requiring a decadent-looking and tasting cake which is healthy. Well, healthier than a flour-based cake with lots of sugar, no fibre and sweetened dried fruit or other ingredients on the no-no list.