In a large heavy pot, combine and bring to a boil: 1 1/2 cups dry white wine, 4 cups water, 2 carrots, peeled and sliced, 1 celery stalk, sliced, 2 onions, peeled and sliced, 1 bay leaf, 7 black peppercorns, 6 coriander seeds, 3 thyme sprigs, A handful of parsley stems, 2 teaspoons salt.
Skim off any rising scum. Turn down the heat and simmer for 45 minutes. Strain, discarding the solids.
If there’s no white wine, substitute about 2 tablespoons good white wine vinegar.
