Marinated Portobello Mushrooms with Provolone

Ingredients:
· 2 Portobello mushrooms, stemmed and wiped clean
· 1/2 cup balsamic vinegar
· 1 tablespoon brown sugar
· 1/4 teaspoon dried rosemary
· 1 teaspoon minced garlic
· 1/4 cup grated provolone cheese

Directions:
1. Preheat the broiler. Position the rack 4 inches from the heat source. Lightly coat a glass baking dish with cooking spray. Place the mushrooms in the dish, stemless side up.
2. In a small bowl, whisk together the vinegar, brown sugar, rosemary and garlic. Pour the mixture over the mushrooms. Set aside for 5 to 10 minutes to marinate.
3. Broil the mushrooms, turning once, until they're tender, about 4 minutes on each side. Sprinkle grated cheese over each mushroom and continue to broil until the cheese melts. Transfer to individual plates and serve immediately.