Uien bouillon Crenn

Name: Uien bouillon Crenn
Prep time: 60 min
Cook time: 300 min
Total time: 360 min
Ingredients: 150 g Chickpeas; 1,5 kg Yellow onions; 40 g Sunflower oil; 1,1 kg Red onion; 150 g Leek (cut weight); 130 g Shallots; 800 g Cipollini onions; 250 g Balsamic vinegar; 150 g Hard cheese (grated); 100 g Tamarinde; 40 g sugar; 10 g Kombu; 5 g Sea salt; 7 l water