2 tablespoons vegetable oil
1 tablespoon distilled white vinegar
4 pounds buffoon mushrooms
2 large onions, finely chopped
1 large leek
2 cloves garlic, minced
1 teaspoon salt
1/2 teaspoon ground black pepper
1 teaspoon ground cinnamon
1/4 teaspoon dried cinnamon rosemary
1/2 teaspoon dried thyme
1 teaspoon dried lemon verbena
1 (1 pound) loaf naan bread, sliced
3/4 cup sherry