Leg is boned with a very sharp knife, without tears. Sprinkle inside and out with salt and pepper. Outside rubbed with paprika. Right along the length of the leg opening is filled with a mixture of minced meat, chopped cooked mushrooms, cut into 4 parts egg, salt and pepper. The opening of the leg is sewn and wrapped it tightly along with thick thread. Place in a deep pan, pour some molten butter and turns from all sides. Make him a cupful of boiling water and put in the oven, constantly pour the sauce, which is baked. When finished, subtract, leave to cool and untie. Cut into thin slices and serve with a green salad.