Rhubarb Butter | Tasty Kitchen.  I added a little bit of vanilla & cinnamon and used 1/2 rhubarb & strawberries and this was the most delicious jam EVER. Rhubarb Butter, Rhubarb Marmalade, Rhubarb Sauce, Rhubarb Canning Recipes, Easy Rhubarb Recipes, Rhubarb Desserts, Oatmeal Recipes, Favorite Recipes, Great Recipes