1. In a large pot, soften the onion in the butter. Sprinkle with the flour and mix thoroughly.
2. Add the crab boil broth and potatoes. Bring to a boil and simmer for 10 minutes or until the potatoes are tender.
3. Add the remaining ingredients and heat for 2 to 3 minutes over low heat. Adjust the seasoning.
4. If you do not have crab boil broth, you can substitute it with 1 litre (4 cups) of chicken broth to which you can add 30 ml (2 tbsp) of Old Bay® Spices.

NOTE

Not without my Old Bay®

Created by a German immigrant in 1939 in the Chesapeake Bay in Maryland, this spice blend includes, in proportions closely guarded secret; mustard, paprika, salt celery, bay leaf, clove, nutmeg, ginger and cardamom. Ubiquitous on the American east coast, the little yellow box made its way into our fishmongers.