Roasted Tomato and Onion Sauce

Roasted Tomato and Onion Sauce is made by roasting ripe summer tomatoes and onions creating a delicious sauce for pasta, soups and more.

Ball was kind enough to send me a  freshTECH HarvestPro Sauce Maker  for review and recipe development purposes. 

Roasted Tomato and Onion Sauce Recipe from #CanitForward


I have enjoyed our garden so much this year.  The garden fresh tomatoes right off of the vine are just incredible.

Garden Fresh Tomatoes for Roasted Tomato and Onion Sauce Recipe from MissintheKitchen #CanitForward

We have been getting six or eight a week and they are really just starting to take off.  I picked up a few from the local farmers market to make this Roasted Tomato and Onion Sauce.


  • Pledge to can-it-forward by signing up via the pledge page and share with your friends!
  • Look for  canning demonstrations via Facebook Live from 10:00AM – 3:30PM ET on Friday July 22, 2016. Each hour, viewers will have the chance to win a giveaway prize!
  • For each like, comment or share on the recipe videos, a donation will be made to charity!
  • Ask Jarden Home Brands canning experts any preserving or home canning questions via Twitter with the hashtag #canitforward from 10AM – 5PM ET on July 22nd.
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Roasted Tomato and Onion Sauce Recipe with summer fresh tomatoes

I remember my mom canning tomato juice when I was a little kid. One morning, she was working so hard in the kitchen. I remember the jars and the tomatoes and bowls of other ingredients.

I proceeded with my ritual of having a bowl of cereal as soon as my feet hit the floor.  I spotted the big bowl of sugar and spooned a bunch over my cereal, poured the milk and plopped down at the kitchen table to eat.

I think I literally spit my cereal out and had quite a fit. I had spooned a ton of salt over my cereal and was so mad that mom didn’t warn me.  She just laughed and shook her head at me.

Tomatoes and Onions for Roasted Tomato and Onion Sauce Recipe ~  A few years ago my mom introduced me to roasted tomatoes and I’m hooked on her Roasted Tomato Soup.  It is my favorite!

Roasted Tomato and Onion Sauce Recipe #CanitForward

I decided to use that same method for an all- purpose tomato sauce. I roasted garden fresh tomatoes and onions. I used the freshTECH HarvestPro Sauce Maker to create the most incredible sauce and it was so easy!

Recipe for Roasted Tomato and Onion Sauce found at

This week has been a doozy and I didn’t have a lot of extra time. So I just made a small batch to test out the freshTECH HarvestPro Sauce Maker.

Freshtech Sauce Maker from Ball for Roasted Tomato and Onion Sauce ~ MissintheKitchen

I was so impressed! It was so easy to use and I was so surprised how fast it worked. The best part was how easy it is to cleanup!  Seriously easy.

Roasted Tomato and Onion Sauce with fresh Thyme from MissintheKitchen

I will be using it to make homemade salsa, fruit spreads and lots of tomato sauce this summer! I can’t wait to show it to my mom, I know she will have some great ideas too. It will also make baby food! How handy is that?

Ball is kind enough to offer a freshTECH HarvestPro Sauce Maker to one lucky reader.

To enter: Take the pledge and leave a comment here with what you will make with your sauce maker and you will be entered to win!  (Open to US residents 18 years and older- entries open through August 1, 2016).

Roasted Tomato and Onion Sauce with the Freshtech Harvest Pro Sauce Maker from Ball ~ MissintheKitchen

So get on over and celebrate Can- it- Forward Day and check out the Freshly Preserved Ideas!

Jars of Roasted Tomato and Onion Sauce ~ MissintheKitchen

5.0 from 1 reviews
Roasted Tomato and Onion Sauce
Prep time
Cook time
Total time
Serves: 3½ pints
  • 5 pounds tomatoes
  • 1 large sweet onion
  • ½ cup olive oil
  • 1 teaspoon kosher salt
  • 1 tablespoon fresh thyme
  1. Preheat oven to 350 degrees.
  2. Cut tomatoes into quarters. Peel and slice onion into thin slices. Arrange in a single layer onto a baking sheet. Drizzle with olive oil and sprinkle with salt. Toss to coat evenly. Bake 1 hour.
  3. Set aside and allow to cool on baking sheet.
  4. Pour into a large bowl, scraping the pan to get all of the liquid.
  5. Using the coarse screen on the Freshtech Harvest Pro Sauce Maker, add tomato and onion mixture to the hopper. Add more as the tomatoes are processed. Continue until all tomatoes and onions are processed.
  6. Stir in fresh thyme
  7. Spoon into prepared jars. Refrigerate until ready to use.
  8. Heat and serve over pasta or add to your favorite soup.
If using this recipe for canning purposes, omit fresh thyme and follow general preserving methods.






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