Step 3 In the small skillet, melt the remaining 2 tablespoons of butter. Add the bread crumbs and parsley and cook over moderate heat, stirring, until golden and toasted, 3 minutes. Stir in the remaining Fontina and Parmigiano and sprinkle over the pasta. Bake for 35 minutes, or until golden brown on top. Serve hot. Serves : 8
The unbaked gratin can be refrigerated overnight. Bring to room temperature before baking.