Pickled mushrooms Recipe

• 1/3 cup red wine vinegar
• 1 cup salad oil
• 1 small onion, thinly sliced and separated into rings
• 1 teaspoon salt
• 1 teaspoon prepared mustard
• 2 tablespoons dried parsley flakes
• 1 tablespoon brown sugar
• 2 6-ounce cans mushroom crowns, drained

Directions