I wound up making the original recipe link I posted from the low-fat vegan blog. What happened is that my family who are travelling in Europe (I live in France) changed their itinerary to be with us for my son's birthday, and suddenly I was faced with making dinner and a cake for 13 people, and I decided to make the recipe with the oil in it to give it that super moist texture. I was already nervous to present a vegan cake to my SAD family, especially to my aunt who is a wonderful baker. I also mail ordered in fake hamburger and cheese for my Mexican buffet, in addition to my usual standards (refriied beans, black beans with Mexican spices, pico de galla, salsa, guac, McDougall sour cream). I wanted to blow them away with my vegan food, and in that sense it was a PR triumph. They aren't aware of the oil issue, and everyone was really impressed at how good vegan food is. I did mention that we don't normally eat anologue meats and cheese, but I definitely caved in a bit. I also had to use corn tortillas with oil, as that's all I have available here.
As for the cake, I still had a carton of margarine that was languishing in the back of the fridge since last autumn, which I intended to use for the frosting. I don't know what was going on in my head, but of course when I opened it up it had gone completely moldy. This happened in the middle of a rainstorm, and my daughter had used my car to take the family out for the day, and I couldn't find her car keys! Plan B, I melted the chocolate and beat in some silken tofu. Presto - chocolate gnache frosting! The frosting was better than the cake, it wasn't that amazing even with a half a cup of oil. Next time I'll make one of the McDougall cakes with some of the whipped prunes. My recipe used apple sauce and oil, but I think the prunes would complement chodolate better. Also, I put the raspberry compote on between the layers and the top layer almost slid right off! We wound up fixing the layers together with toothpicks.
That was a long day in the kitchen I tell you. I slept very well that night