2. The next day, peel the carrot and cut it into slices. Peel the onions, stick cloves into one of them, and chop the other one. Peel the garlic. In a casserole dish, heat the duck fat and brown the chopped onion with the chicken wings for 2 minutes. Add the diced tomatoes, beans, carrots, the onion with cloves, garlic, bouquet garni, and pepper. Cover with water, about 2 centimeters above the ingredients. Bring to a boil, cover, and cook over low heat for 40 minutes, until the liquid is almost absorbed: monitor the cooking, partially cover or add water if necessary. Towards the end, season with coarse salt and add the tomato paste.