Re: homemade vegan margarine
How about using virgin coconut oil, which I believe is solid at room temp and also meant to be quite healthy. As long as you like the taste of coconut, that is!
Re: homemade vegan margarine
I think for brioche (if we are talking about the sweet dough that makes soft baked goods) you could probably just use oil instead of fat. You would have to look at the fat content of margarine (I think somewhere between 75 to 85%) and replace the weight of the margarine with oil + water and not just oil because you would increase the fat content otherwise.
Re: homemade vegan margarine
Thanks for the suggestions, guys-- I hadn't even experimented much with oil yet, and I didn't even think of coconut oil!