This is interesting as when I went to the Viva Roadshow last year Jane, I think, was doing a cooking demonstration and she said that the water from a tin of chickpeas could be used instead of eggs when cooking. She said three spoonfuls equalled one egg but I can't remember if they were dessert or tablespoons. You whisk them up and put them in a cake or whatever. I will definitely have a go at Nina's Butter, it would be ideal to make everything from scratch really, I suppose.