Language is boiled in salted water, black pepper and allspice. Peeled while still hot and cut into slices. Chopped onion, parsley and carrot sauté in a hot butter. Slices language and roux are flooded with strained broth, enough to cover them. Simmer for 10-15 minutes. To flavor the sauce after removing it from the fire, can add a few tablespoons of yogurt mixed with a little lemon juice.