3 coquilles jacques blanc Recipes

butter, divided, chopped leek (about 3 leeks), kosher or sea salt, white pepper, sauvignon blanc or other dry white wine, thyme sprigs, black peppercorns, bay leaf, sea scallops, all-purpose flour, half-and-half, curry powder

sea scallops (24 to 28), tough muscle removed from sides if necessary, dry vermouth, minced shallot, white-wine vinegar, dry white wine, cold water, cold unsalted butter, cut into tbsp pieces, chopped fresh tarragon