Dairy-free/Gluten-free icing recipe - for decorating

If no one else answers, I know you can make a shortening-based frosting with 2 cups of shortening and 5 cups of confectioners sugar, and 1 tsp vanilla extract. (I use that recipe but use one cup butter.)

I usually add a teaspoon of butter flavoring because crowds like it more that way. I figured that one out because my husband picked up butter flavored crisco on accident once, so I just made frosting with it. People loved it. The only thing is it's yellow colored, so it changes the frosting color a little. So I just started buying plain and adding a teaspoon of flavoring.

Yes! I forgot you'll need water, a couple teaspoons at a time until it's smooth.

I use a combo of earth balance soyfree butter substitute and spectrum non hydrogenated organic shortening. I can taste a crisco like substance in my frosting and bleh. But with this combo, dd & I were like yum. We use boxed coconut milk but water should work too