- 3 1/ 2 cups powdered sugar
- 1 cups shortening
- 3 tablespoons cashew milk
Make sure all ingredients are at room temperature. Then, using a mixer, blend up the butter until it is creamy. Add in the rest of the ingredients except for the milk, and blend until smooth.
The number of tbsp of milk you need depends on the water content of your vegan butter. If your frosting seems too dry, at a bit more powdered sugar. A sturdy creamy texture is important for piping. If the frosting is too stiff, the piped edges will crack. If the frosting is too fluid, the piping shape won't hold.
Cover frosting bowl with a soaking-wet paper towel until you are ready to pipe.
You can refrigerate this frosting for a week, or freeze for a few months. But I get best piping results piping it right after making it.