https://www.themediterraneandish.com/spaghetti-sauce-recipe In the meantime, prepare the sauce: First, remove any thick or woody stems from the herbs and discard. https://www.tasteofhome.com/recipes/homemade-canned-spaghetti-sauce 2 cups chopped fresh tomatoes (3 medium) 2 ounces feta cheese, crumbled; 1/2 cup finely chopped red onion; 1/4 cup chopped fresh basil; 1 tablespoon olive oil Ingredients. *When using cornstarch, always add a small amount of water and make the mixture into a thin liquid before adding to your sauce.Otherwise, it will make … *To make this dish gluten-free, use cornstarch or gluten-free flour instead of the all-purpose flour. Chop herbs finely- you should end up with about 3/4 cup of chopped herbs … Add salt and spaghetti. Cooking Tips *To make this dish vegetarian, use olive oil instead of butter when sauteing the garlic and onion. Cook for 12-14 minutes.