In a large enameled cast-iron casserole, melt 1 tablespoon of the butter in the remaining 1 tablespoon of oil. Add the barley and cook over moderate heat, stirring, until golden, 7 minutes. Add the minced shallot and cook until softened. Add the Turkey Stock and bring to a boil. Season with salt and pepper. Cover and bake for 35 minutes, or until the barley is al dente.