Butter Rhubarb Butter- super sweet, but good in small amounts in Greek yogurt. Or plain!Rhubarb Butter- super sweet, but good in small amounts in Greek yogurt. Or plain! Rhubarb Butter, Strawberry Butter, Rhubarb Curd, Rhubarb Jelly, Rhubarb Marmalade, Pickled Rhubarb, Strawberry Rhubarb Recipes, Rhubarb Chutney, Rhubarb Syrup