Pistachio Buttercream Frosting Learn how to make the best pistachio buttercream frosting for frosting cakes and cupcakes and for filling macarons and desserts! 1 cup shelled pistachios, salted or unsalted 2 tbsp heavy cream 3 cups unsalted butter, softened at room temp 2 tsp vanilla extract 4 cups confectioners sugar Join THE FOOD 923 views13:00