40 Days of Clean Eating: Homemade Tomato Sauce

Make weeknight dinners easy with this make-ahead homemade sauce.

Day 28 of 40

Originally posted on Cooking Up Clean [Photo credit: Kari Lund]

Prep time: 15 min

Cook time: 45 min


  • 10 pounds tomatoes, cored and quartered (this does not need to be exact, just fill up your stock pot nearly to the top)
  • 2 medium onions, quartered
  • 1 head of garlic, cloves peeled
  • 1 tablespoon salt


  1. Place all ingredients in a large (approximately 8 quart) stockpot.
  2. Stirring occasionally, cook on medium heat until garlic and onions are softened and sauce has reduced about 45 minutes.
  3. Pureé with a stick blender until smooth.
  4. Pour finished sauce into canning jars and seal or pour into freezer-proof containers to freeze the sauce.


If you’re daring, add an habañero or other spicy pepper to the mix for a slightly spiced sauce.
Sauce can be canned or frozen.

Make breakfast satisfying and delicious:

40 Days of Clean Eating: Savory Weekend Mini Quiche