ROASTED WHOLE TOMATO SAUCE

Steps:

• Preheat the oven to 300 degrees F.
• Add the tomatoes, olive oil, oregano, garlic, onion, 1 teaspoon salt, 1/2 teaspoon black pepper and the red pepper flakes to a large Dutch oven or oven-safe pot with a lid. Stir so that everything is coated in oil and spices. Roast in the Dutch oven, uncovered, until the tomatoes start to soften and split, about 1 hour.
• Stir and flip the tomatoes, then cook until the tomatoes, garlic and onion are all browned and very soft, about 1 hour more. At this point everything should be easily smashed with the back of a spoon. Transfer the pot to the stove and keep covered.
• While the tomatoes finish roasting, bring a large pot of water to a rolling boil over high heat. Add 2 tablespoons salt and the pasta. Cook 2 minutes less than package instructions. Reserve 1 cup pasta water and drain the pasta.
• Add 1/2 cup of the pasta water to the cooked tomatoes and carefully blend with an immersion blender, tipping the pot slightly if necessary to fully submerge the blender (or transfer to a regular blender) and blend until smooth. Bring the blended sauce to a simmer over medium-high heat, then add the drained pasta and cook for 2 minutes, stirring frequently. Adding more pasta water if the mixture needs to be saucier. Serve warm with a few basil leaves and a sprinkle of red pepper flakes.