I am hosting a birthday get-together for a friend who is allergic to dairy. I went with an oil based chocolate cake that is dairy free. But I'd like a butter free frosting that is as delicious as possible. Does anyone have any favorites? I'm thinking I might browse around for something that uses coconut oil, maybe a ganache on top and raspberry jam in between the two layers? I'd really prefer a fluffy frosting that doesn't require any unnatural ingredients.