"It is easy to make your own tomato sauce and it is even simpler when a slow cooker is involved. Make a rich tomato sauce that will last you days with this DIY recipe...."
INGREDIENTS
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8 thick-cut pancetta or bacon
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2 red onions
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2 garlic
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1/2 dried oregano
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1/2 crushed red pepper
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4 whole peeled tomatoes
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1/4 tomato paste
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Grated Pecorino Romano cheese, for serving