I could not find a recipe for a 3 and 1/2 hr lasagna. But if you double the recipe...... anyways, if you want to make a blackened lasagna aka burnt, you'll have to ask Frogggggy about that.
Heat a deep-sided skillet or stock pot and add about 1 teaspoon of olive oil. Add sausage and cook until just browned (3-4 minutes). Remove the meat from the skillet or pot and set aside. Adding at least another teaspoon of olive oil to the skillet or pot, sauté the 1 large diced onion and fresh minced or chopped garlic for a few minutes. Add the canned chopped tomatoes and tomato sauce to the skillet. Let tomato sauce come to a slight bubbling and turn heat down to simmer. Add at least 1 teaspoon (or more to taste) each of Italian seasoning, basil and sugar to the tomato sauce. Add several dashes of red or white wine for flavoring. Allow tomato sauce to simmer on medium to low heat, stirring occasionally, until tomato sauce is cooked down to about half the amount (about 30-45 minutes).
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Ricotta Cheese Mixture:.
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In a separate bowl mix together, ricotta cheese, 8 ounces mozzarella cheese, 1 cup parmesan cheese, 1 pkg. cream cheese, 1 med-large minced onion, 1 teaspoon basil. Set aside until ready to use.
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Layering:.
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Using a large deep-sided baking dish or lasagna pan, layer 1/3 tomato sauce, lasagna noodles, ½ ricotta cheese mixture, continue layering until you have ended with tomato sauce.
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Sprinkle remaining mozzarella cheese and parmesan cheese on the top. Cover with foil and bake at 350 degrees until heated thoroughly and bubbling about 1 hour and 45 minutes. Take foil off and bake for another 15 minutes allowing cheese to lightly brown around the edges.