Almond, soy, rice, hemp, macadamia, hazelnut, pea, flax, coconut, cashew, peanut, walnut—there’s been a recent explosion in the varieties of plant-based milks. It’s a crowded market, and the non-dairy cream of the crop right now is oat milk. It’s vegan, gluten-free, nut-free, and GMO-free.