Add butter and saute' onions until golden brown, add in tomatoes. Simmer for about one hour. In a blender mix sauce until smooth. Serve over your favorite pasta. Top with fresh parmesan cheese and a sprig of fresh parsley. Enjoy!
Notes
Although this sauce is absolutely perfect, you can certainly add in your own spices to kick up the flavor even more. Try a dash of red pepper flakes or even chopped garlic or fresh basil.
Keyword favorite recipes, Marinara sauce Italian, Pasta