Recipe - Watercress And Tangerine Salad With Red Onions

1 md Red onion; thinly cut or sliced up
3 tablespoon White wine vinegar
1 tablespoon Dijonstyle mustard
2 teaspoon Cracked black peppercorns
One half teaspoon Salt
One fourth teaspoon Cayenne pepper
One half cup Extravirgin olive oil;
scant One half cup
2 Tangerines; peel, pith
removed,
And cut into segments
2 bn Watercress; coarse stems
Removed; washed and dried

In a bowl, combine the cut or sliced up onion with ice water to cover and let soak
for 30 to 45 minutes. Meanwhile, make the vinaigrette. In a glass bowl,
whisk together the vinegar, mustard, pepper, salt, and cayenne until
thoroughly blended. Drizzle the olive oil over in a thin stream, whisking
constantly until all the oil is incorporated. Drain the soaking onions, pat
them dry with paper towels, and separate into rings. In a large bowl, toss
the tangerines and the watercress together gently. Drizzle over enough
vinaigrette just to coat and toss again. Mound some salad onto the plate
and scatter a few onion rings over the top. This recipe yields 6