½ cup butter
6 shallots, thinly sliced
6 Tablespoons champagne vinegar or white wine vinegar
salt & pepper, to taste
Shuck the oysters, discarding the top shell. Reserve their liquor (oyster liquid).
Place the oysters on a rimmed baking sheet, flat side up.
In a sauce pan, melt the butter. Add the shallots, and sauté them until softened, about 3-4 minutes.
Add the vinegar, 6 Tablespoons of the oyster liquor and salt and pepper to taste. Let simmer until the liquid is slightly reduced, about 2 minutes.
Spoon the shallot mixture evenly on top of each oyster meat.
Broil the oysters 5 inches from heat for about 7 minutes, or until the oyster edges curl and the liquid is bubbling.