This is a very tasty pudding. Do not forget to take the butter out of the fridge so that it is nice and soft when you make the sponge. I always make my Victoria sponges with margarine rather than butter as I think it gives a lighter texture when made, but the choice is yours obviously.
The rhubarb is roasted first as it holds together better than when it is cooked in a saucepan. Clearly you can serve this with a variety of things – custard, yogurt, crème fraiche or ice cream, apart from the suggestions in the recipe.