Icy Cups Recipe

Icy Cups Recipe - 2 tablespoons light soy sauce, 1 tablespoon hoisin sauce, 2 tablespoons clear rice vinegar, 1/2 teaspoon salt, 1/2 teaspoon sugar, 3 tablespoons vegetable oil, 2 cloves garlic, minced, 2 teaspoons minced fresh ginger, 1/3 cup minced red onion, 1 cup chopped canned button mushrooms.