fish and vegetable stew with saffron part 1

Fish and Vegetable Stew

saffron threads,
snapper, sole, flounder, etc 10-12 oz.,
8 oz onions,
3 oz. leeks(white only),
4 oz. celery,
5 oz. carrots,
1/2 lb. fresh tomato,
elephant garlic 1 large clove,
3 T. olive oil,
1 t. dry basil,
1T. cornstarch w/1T. water,
5 oz. zuchinni,
1 1/2 t. sea salt,
1/2 t. ground black pepper,
1/4 c. dry white wine.
3/4 qt. fish stock

Video link to part 2
https://youtu.be/mm_jQu_HiY0