
Ingredients
1/4 cup rice vinegar (not seasoned)
1 tablespoon grated sweet onion
1/4 cup finely grated peeled (Braeburn or Gala) apple
4 teaspoons soy sauce
1 teaspoon sugar
3 tablespoons olive oil
6 cups watercress (thin stems and leaves only; from 1 large bunch)
1 firm-ripe avocado