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Pasta with Slow Roasted Tomatoes

Spaghetti with oven Slow Roasted Tomatoes
Prep Time 20 mins
Cook Time 4 hrs
Total Time 4 hrs 20 mins
Course Main Course
Cuisine American, Italian


  • 3 lbs tomatoes Roma, tomatoes on vine and cherry tomatoes all work
  • 1 large yellow onion
  • 10 cloves garlic
  • 2 tbsp fresh thyme
  • 2 tbsp fresh rosemary, finely chopped
  • olive oil
  • salt and pepper
  • 1 lbs spaghetti
  • fresh basil
  • Parmesan Cheese freshly grated


  • First thing you can do is boil a big pot of water and put the tomatoes in for 1-2 minutes then take them out and peel the skin. This isn't absolutely necessary and I actually skipped it this time. I don't mind an extra bite from the skin, so feel free to skip this step.
  • Cut the tomatoes in large chunks. Slice the onion and smash the garlic cloves. Chop all of your herbs. Put a good amount of olive oil in a large baking pan/dish then put in the tomatoes, onions and garlic, Sprinkle all the herbs on top and season well with salt and pepper. Mix everything well together and make sure you have enough oil. Yes, you will need a lot, don't be scared. It will become amazing part of the sauce, flavored with all the ingredients. Basically the whole bottom of the pan should be covered with either tomatoes and onions or oil. We don't want to see any of the bottom of the dish.
  • Slow roast on 300 degrees for about 2 1/2-4 hours, mixing it around every hour. It will kind of depend on your tomatoes and how big they are. Once everything is getting really nice and caramelized, it is done. We don't want burnt parts, but we do want really good caramelization, that is where the flavor is at.
  • When the tomatoes are almost done, bring another pot of water to boil and salt generously. Cook the pasta al dente and then mix with as much sauce as you like. I like to be generous with my sauce but my kiddos prefer not too much of it, you do you.
    Top with some fresh basil and freshly grated Parmesan Sauce
Keyword pasta, slow roasted tomatoes, spaghetti, tomato sauce