Combine all the ingredients together with 2/3 olive oil to 1/3 vinegar and marinate the mushrooms for approximately 20-minutes. Sue advises that you should not marinate the mushrooms any longer than 1-hour as they become discoloured. Serve them in an antipasto. Per serving: 0 Calories (kcal); 0g Total Fat; (0% calories from fat); 0g Protein; 0g Carbohydrate; 0mg Cholesterol; 0mg Sodium Food Exchanges: 0 Grain(Starch); 0 Lean Meat; 0 Vegetable; 0 Fruit; 0 Fat; 0 Other Carbohydrates Converted by MM_Buster v2.0n.