Ingredients

Bolognese Sauce

3 lb. fresh ricotta cheese

3 large egg yolks

1 c. grated Parmesan cheese

1 1/2 tsp. Coarse salt

1/4 tsp. Freshly ground black pepper

1/4 tsp. ground nutmeg

pinch ground cayenne pepper

2 tbsp. extra-virgin olive oil

1 tbsp. Coarse salt

1 lb. Uncooked lasagna noodles

1 lb. fresh mozzarella cheese

Preparation

Step 1Bring sauce to room temperature. In a large bowl, whisk together ricotta, egg yolks, Parmesan, 1 1/2 teaspoons salt, black pepper, nutmeg, and cayenne pepper. Chill filling until ready to assemble lasagna.Step 2Preheat oven to 400 degrees. Butter an 11-by-14-by-3-inch lasagna baking pan. Bring a large pot of water to a boil. Add olive oil and remaining tablespoon of salt. One at a time, add lasagna noodles; cook until very al dente, 2 to 3 minutes less than the manufacturer’s instructions. Remove noodles with tongs; drain in a colander.Step 3Spread about 3 cups of sauce on the bottom of the prepared baking dish. Place a single layer of lasagna noodles over the sauce, overlapping them slightly. Spread about 2 cups sauce over the noodles and about half the ricotta filling mixture over the sauce.Step 4Top with a layer of lasagna noodles, again slightly overlapping them. Repeat with more sauce and remaining ricotta filling mixture. Top with a final layer of lasagna noodles. Spread a layer of sauce over the noodles, and finish with a layer of sliced mozzarella rounds.Step 5Bake until the sauce is bubbling and the cheese is melted, at least 1 hour. Cover with aluminum foil if the cheese starts to brown too early. Let the lasagna stand 10 to 15 minutes before serving.