Ingredients:
2 cups coarse cornmeal (stoneground, whole grain is best); 1 1/2 teaspoons salt; 2 or more tablespoons butter, optional; 1 cup of grated Fontina cheese; 2 Tablespoons additional butter; 1 1/2 cups tomato sauce, 1 Tablespoon finely chopped fresh rosemary; Salt and freshly milled pepper; 1/2 gorgonzola or feta cheese; chopped fresh parsley
The first step is to make the firm polenta with cheese: Bring 6 cups of water to a boil in a heavy saucepan. Add the salt, and then the cornmeal in a steady stream, stirring constantly with a whisk so cornmeal doesn’t make big lumps or seize up in a glob. Once all is mixed in well, lower the heat and cook, stirring more or less constantly, for 30 to 45 minutes. (If the polenta does seize up, you can add small amounts of boiling water to smooth it out.) After 30 or so minutes, stir in 1/2 of the fontina cheese. Taste for salt and adjust if needed.
Second, shape the polenta. Quickly pour the cooked polenta on a baking sheet, large baking dish, loaf pan, or pie plates, and spread it with a spatula into a layer of about 1/2 inch thick or less. Let it cool on the counter for 15 minutes to firm up. (This might take longer if you put it into a loaf pan). Then cut the firm polenta into desired shapes, such as diamonds, circles, or rectangles. This first step of making the firm polenta may be done hours in advance of serving time.
Now, make the sauce. Heat the tomato sauce with half of the chopped rosemary. Taste and season with salt and pepper.
Preheat oven to 400 and assemble your dish to bake. You’ll need a 3 quart gratin dish or a baking dish that you would use to make lasagne. Spread 3/4 cup of tomato sauce in a the baking dish; then place and overlap pieces of polenta; then add the remaining grated Fontina cheese (see, it IS like making lasagne!). Then spoon the remaining sauce carefully over the bands of polenta, leaving the edges exposed (to crisp up). Crumble the gorgonzola or feta over the top and sprinkle the rest of the rosemary and parsley last.
Bake, uncovered for about 30 minutes or until the gratin is hot and bubbly. Let it cool for 10 minutes. Garnish with more chopped parsley, season with salt and pepper, and serve.