Beat the vegan butter until light and fluffy, about 2
Add in 2 cups of the powdered sugar, lemon juice, lemon zest and
Beat on low, then switch to medium speed and beat until light and
fluffy, about 2 minutes.
Now add in the remaining 1 cup of powered sugar and mix.
If the frosting seems too thick, add a tablespoon at a time of oat milk.