Rhubarb Sour Cream Muffins ~ One advantage to living in a northern climate (there aren't too many...lol) is rhubarb! If you are not familiar with rhubarb, it's a cool season perennial vegetable, that's right...it's a vegetable! Even though we most often treat it as a fruit in such confections as pies, crisps, squares, ice-cream, compotes and jams, crumbles,