Preparation
Preheat oven to 375 degrees F. Spray 8x8x2-inch glass baking dish with vegetable oil spray. Bring broth to boil in heavy medium saucepan over medium heat. Gradually whisk in cornmeal. Continue to whisk until mixture is very thick, about 3 minutes. Mix in cheese. Pour into prepared dish.
Bake polenta until top begins to brown, about 30 minutes. Serve hot.