STEP1: Slightly soften the vegan butter at room temperature for 10 minutes. No microwave.
To a large bowl, add softened vegan butter, vanilla, and grated lemon zest.
STEP5: Beat on low heat for a few seconds, scrape down sides, and beat on medium heat until frosting is velvety smooth (30 seconds max). Don't over-beat.
STEP 6: Let firm up in the fridge for at least 30 minutes or in the freezer for at least 15 minutes before using on cakes, cupcakes, and cinnamon rolls.