Ingredients

  • 4 1/2 cups water
  • 1 1/2 teaspoons salt
  • 1 1/2 cups coarse or medium cornmeal
  • 3 tablespoons olive oil
  • 3/4 teaspoon dried sage
  • 7 tablespoons grated Parmesan
  • 2 tablespoons butter
  • 1 1/2 pounds mushrooms, sliced thin
  • 1/4 teaspoon fresh-ground black pepper
  • 6 ounces fontina, grated (about 1 1/2 cups)

Method

  • Heat the oven to 350.
  • In a medium saucepan, bring the water and 1 teaspoon of the salt to a boil.
  • Add the cornmeal in a slow stream, whisking.
  • Whisk in 1 tablespoon of the oil and 1/4 teaspoon of the sage.
  • Reduce the heat and simmer, stirring frequently with a wooden spoon, until very thick, about 20 minutes.
  • Stir in 3 tablespoons of the Parmesan.
  • Meanwhile, butter an 8-by-12-inch baking dish.
  • In a large frying pan, melt 1 tablespoon of the butter with 1 tablespoon of the oil over moderately high heat.
  • Add half the mushrooms, 1/4 teaspoon each of the salt and sage, and 1/8 teaspoon of the pepper.
  • Cook, stirring frequently, until the mushrooms are golden, about 5 minutes.
  • Remove.
  • Repeat with the remaining mushrooms, 1 tablespoon each butter and oil, 1/4 teaspoon each salt and sage, and 1/8 teaspoon pepper.
  • Pour half the polenta into the baking dish and spread in an even layer.
  • Top with half the mushrooms, followed by half of the fontina and 2 tablespoons of the Parmesan.
  • Repeat with the remaining polenta, mushrooms, fontina, and Parmesan.
  • Bake until the cheese is bubbling, about 15 minutes.