4 lbs cooked crawfish, 2 lbs crawfish shells, 2 lbs crab shells, 3 lbs shell-on shrimp (head-on preferred), or 1/2 lb shrimp heads/shells
2 tbsp butter (ghee okay)
1 medium onion, coarsely chopped
2 stalks celery plus leaves, coarsely chopped
1 bunch parsley, stems only, coarsely chopped
1 tbsp whole black or white peppercorns
1 cup dry white wine (Pinot Grigio, Sauvignon Blanc, Chardonnay)

1. Prepare the seafood. Peel the crawfish, reserving the tail meat for a future cooking adventure (hint: next week’s recipe). If using crab shells, be sure to remove the tomalley (the yellow “guts”) as they can give your stock a bitter taste. If using unpeeled shrimp, peel them and set the shells/heads aside; at this point the only appropriate thing to do would be to make my Bam Bam Shrimp recipe with the peeled shrimp. A small confession: when peeling shrimp for stock, I like to throw a few whole shrimp into the stock with the shells for good luck.

2. In a large stockpot, melt the butter (or ghee) over medium heat, then add the onion and celery. Sauté until softened, about 5 minutes, then add the shells, parsley stems, and peppercorns. Sauté until the shells are brightly colored, and the parsley is bright green, about 2 minutes, then add the wine; simmer until the wine evaporates, about 3 minutes. Add enough water to cover everything by 1″, about 3 quarts. Bring to a simmer then reduce heat to med/low and gently simmer for 40 minutes.

3. Strain through a fine-mesh strainer or a colander lined with cheesecloth, then cool. It will last a week in the fridge and up to six months in the freezer.

** Wondering what to make with shellfish stock? Look no further: Blue Crab and Chipotle Bisuqe, Blue Crab and Chipotle Bisque, or Brudet (Croatian Seafood Stew) will all do nicely, and risotto with shellfish stock can’t be beat (inspiration here). Better yet, next week’s recipe will feature this stock!

** The easiest way to save up shells for stock would be to just save them as the opportunities arise. Going to a fancy seafood dinner, or making a seafood feast at home? Save the shells in a doggie bag, then freeze them in a resealable bag for when you want to make stock.

** To make this dish Whole30, use ghee in place of butter and 2 tbsp white wine vinegar instead of the white wine.