1/4 cup rice vinegar (not seasoned)
1 tablespoon grated sweet onion such as Vidalia or Walla Walla (use large holes of a box grater)
1/4 cup finely grated peeled Gala apple (use small holes of box grater)
4 teaspoons soy sauce
1 teaspoon sugar
3 tablespoons vegetable oil
6 cups watercress (thin stems and leaves only; from 1 large bunch)
1 firm-ripe avocado
- Stir together vinegar, onion, apple, soy sauce, and sugar until sugar has dissolved, then stir in oil.
- Just before serving, toss watercress with enough dressing to coat. Quarter, pit, and peel avocado, then cut crosswise into 1/4-inch-thick slices. Gently toss with watercress.