Frosting lovers, rejoice! We have the perfect pairing for your favorite pumpkin bread, cookies, spice cake, and more: Pumpkin spice buttercream frosting! It’s decadent, sweet, buttery (but vegan + dairy-free!), and perfectly pumpkin-spiced. This fluffy fall dream is just 1 bowl, 5 minutes, and 4 ingredients away. Grab your favorite pumpkin treat and let’s get to frosting!