Pour an entire bag of vegan powdered sugar in a bowl. Florida Crystals brand says vegan, and you can check the one at your grocer.
Add a tsp of vanilla extract PURE, not natural flavorings. You may just end up with beaver anus, (castoreum) in your cake!
Add a TBSP of coconut oil. You could add more for more creaminess, but I like to eat lowfat; and along those lines, adding oil is OPTIONAL. The frosting will be VERY thick despite the oil.
Add nut or seed milk in slowly, stirring as you do it, so as not to add too much liquid, which will ruin the frosting. Start low and GO slow!!
When you have the desired consistency, slather it on your cake, cupcake, or yourself and EAT!