INGREDIENTS
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1/3 cup olive oil
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1/4 tsp. red pepper flakes
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1/2 tsp. italian seasoning
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1/2 tsp. dried oregano
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1 tsp. granulated sugar
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4 cloves garlic, minced
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1 small yellow onion, diced finely
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2 tbsp. butter
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1 tsp. salt
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1/2 tsp. ground black pepper
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2 (28 oz.) cans whole tomatoes, crushed
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1/2 cup Parmesan cheese, freshy grated