Ingredients

• 1/3 cup chicken broth
• 2 tablespoons tomato paste
• 1 tablespoon rice vinegar, plus
• 1 teaspoon rice vinegar
• 2 teaspoons sugar
• 2 teaspoons soy sauce
• 1 teaspoon oil
• 1/2 teaspoon cornstarch
• 1/2 lb shrimp, peeled and deveined
• 1/2 teaspoon salt
• 2 tablespoons oil
• 2 cloves garlic, crushed
• 1 small onion, sliced thin
• 1 1/2 cups mushrooms (canned or fresh)
• sesame seeds
• 1/8 teaspoon ground red pepper