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+ servings
picture of roasted tomato marinara sauce in a jar
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5 from 1 vote

Roasted Tomato Marinara Sauce

Tired of using those bland jars of spaghetti sauce? This homemade roasted tomato marinara sauce is packed with more flavor than those store-bought jars. 
Prep Time5 minutes
Cook Time45 minutes
Total Time50 minutes
Course: Pasta
Cuisine: Italian
Keyword: italian, pasta, sauce, tomato, tomato sauce
Servings: 2 cups
Calories: 68kcal
Author: Courtney O'Dell

Ingredients

  • 2 pounds roma tomatoes
  • 1 onion peeled and quartered
  • 2 tablespoons olive oil
  • 4 tablespoons balsamic vinegar divided
  • 1 whole head garlic
  • ¼ cup fresh basil leaves lightly packed
  • Salt and Pepper

Instructions

  • Preheat your oven to 425 and line a large baking sheet with foil (it will help keep the tomatoes from sticking to the pan).
  • Add the tomatoes and onion to the pan and drizzle over 1.5 tablespoons olive oil along with the balsamic vinegar. Sprinkle generously with salt and pepper and toss to combine.
  • Slice the top off the head of garlic, making sure to leave it intact.
  • Drizzle the remaining half tablespoon of olive oil over the garlic and wrap it tightly in foil.
  • Place the garlic cut side up on the baking sheet.
  • Roast for 35 minutes, or until the tomatoes are caramelized and the onions are golden brown.
  • Remove the garlic from the foil and squeeze out the cloves-- be careful, it will be hot!
  • Add the garlic cloves to a food processor, along with the roasted tomatoes, roasted onion, remaining two tablespoons balsamic vinegar, and fresh basil.
  • Puree to your desired consistency and season with salt and pepper to taste.
  • Store the marinara sauce in an airtight container in the fridge for up to five days or in an airtight container in the freezer for up to three months.

Notes

  • I’m using roma tomatoes but you could also use heirloom-- just avoid varieties with a bunch of seeds as they tend to be more watery.
  • Onion and garlic add delicious flavor to the marinara sauce!
  • Olive oil helps the tomatoes caramelize without burning.
  • Balsamic vinegar enhances the sweetness and acidity in the tomatoes.
  • Basil is my favorite herb to use in marinara sauce-- it really makes a difference! You could also add 1 teaspoon fresh thyme if you’d like.

Nutrition

Serving: 1/4 cup sauce | Calories: 68kcal | Carbohydrates: 8g | Protein: 1g | Fat: 4g | Saturated Fat: 1g | Polyunsaturated Fat: 3g | Sodium: 46mg | Fiber: 2g | Sugar: 5g