Thursday, August 30, 2018

Roasted Tomato Sauce (Canned)


  • 20 lbs. past tomatoes (I do add in a few other varieties as well for best flavor & consistency)
  • 4 c. chopped onions
  • 8 med. cloves garlic, chopped
  • 2 TB. olive oil
  • 1/4 c. balsamic vinegar
  • 2 TB. canning salt
  • 1-1/2 TB. dried oregano
  • 1-1/2 TB. dried basil
  • 2 tsp. black pepper
  • 1 tsp. crushed red pepper flakes (optional, but we love it)
  • Citric acid or bottled lemon juice


  • Heat oven to 425 degrees. Halving all ingredients to work in two batches, divide olive oil, onions, garlic, and dry seasonings between 2 or 3 roasting pans (what you have that will fit in your oven).
  • Wash tomatoes, remove cores and blossom ends, cut in half and squeeze gently to remove juice and seeds. Place tomatoes, cut side down, on top of ingredients in prepared pans.
  • Roast for about 40 minutes, turning once, until most of the tomato skins are puffed and browned. Remove from oven.
  • Scrape roasted vegetables into a large stockpot, set aside and repeat the prep and roasting with remaining half of ingredients.
  • Using an immersion blender, blend roasted ingredients until smooth (alternately, you can scrape from the roasting pans into a blender in batches and then add to the stockpot). 
  • Bring smooth sauce to a boil over med-high heat, lower heat and then simmer sauce until it reaches desired consistency, stirring often, about 45 minutes to 1 hour. You can adjust salt or dry seasonings to taste at this point if you wish.
  • Prepare a steam canner, jars, and lids.
  • Adding 1/4 tsp. citric acid to pints (1/2 tsp. to quarts) OR 1 TB. lemon bottled juice to pints (2 TB. for quarts), ladle the hot tomato sauce into hot jars, one at a time with 1/2-inch headspace. Wipe rims, attach lids and place in canner rack.
  • Process 35 minutes for pints and 40 minutes for quarts (if processing both pints and quarts together, use the longer processing time). 
  • Remove from canner to a towel-lined surface and let cool 24 hours. Check seals, label & store for up to a year.

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