Roasted Tomato Sauce is so simple to make and it makes the most delicious marinara sauce or homemade tomato soup. Step by step instructions and tips for storage and freezing. Once you try this roasted tomato sauce, you will never go back to store bought!
Our garden tomatoes have been prolific this year. We plant a variety of tomatoes including Red Cherokee Heirlooms, Roma tomatoes and yellow pear tomatoes. The Roma tomatoes make the most amazing sauce and you are just going to love how simple it is to make!
My mom first introduced me to roasted tomatoes and I have never looked back. It’s one of my favorite things to make with our garden fresh tomatoes!
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How to Make Roasted Tomato Sauce:
- Wash tomatoes and drain well. Remove stem and cut off any blemishes or dark spots.
- Slice tomatoes in half and place on a parchment lined baking sheet. You can also use aluminum foil if you prefer.
- Drizzle tomatoes with olive oil.
- Sprinkle kosher salt, pepper and a bit of sugar over tomatoes. The sugar is optional but I think it enhances the tomato flavor.
- Roast for 1 hour.
- Remove from oven and allow to cool about 10 – 15 minutes.
- Pour tomatoes and juices from the pan into a food processor.
- Pulse for 30 seconds to one minute until desired consistency is reached. If you like smooth sauce, go ahead and put on high speed for about 1 minute. For sauce with a little more texture, use the pulse and check at about 30 seconds.
- Sauce can be used immediately to make marinara sauce or homemade tomato soup or stirred into your favorite casserole.
- Store in an airtight container in the refrigerator up to 3 days.
How to Freeze Tomato Sauce:
Freezing roasted tomato sauce is my favorite method for storage. It is so much quicker and easier than canning. You can use zip top freezer bags but I have the best luck using my vacuum sealer.
- I put 3 cups of tomato sauce into the sealer bag. I fold the top down before filling to help keep the top clean. If you get a tomato sauce on the top of the bag, just wipe it clean before sealing.
- My vacuum sealer has a gentle setting and a moist setting that works perfect for tomato sauce.
- I label the sauce and freeze them flat. They stack so well in the freezer and thaw really quickly. Don’t forget to date the packages, it is the best way to know how long it’s been in the freezer.
- Using this method the tomato sauce will be good up to a year, possibly longer. The vacuum seal bags are thicker than zip top freezer bags, keeping it fresh longer.
How to Thaw Frozen Tomato Sauce:
Place frozen tomato sauce in the refrigerator to thaw or if you need it quickly, place the bag in a shallow pan of hot water for about 10 minutes and it will thaw enough to remove from the package and use in your recipe.
I make my tomato sauce pretty basic without herbs and spices. That makes it easy to use for any recipe and I think the sauce tastes fresher if it is seasoned when preparing the recipe rather than freezing the spices.
Add sliced onions or garlic cloves to your pan of tomatoes before roasting.
What Tomatoes are Best for Roasting:
I really like using Roma tomatoes for roasting and making tomato sauce. It will work with any ripe tomato. I sometimes do a combination of Roma, heirlooms and cherry tomatoes. You really can’t go wrong here. The Roma tomatoes are meatier and make a more hearty sauce in my experience.
Do you Have to Peel Tomatoes for Sauce?
You do not have to peel the tomatoes! I remove any dark spots or blemishes as I slice the tomatoes in half. If using something other than a Roma tomato, you will want to remove the core. You can blanch the tomatoes to easily remove the peel, but after roasting and processing, I can’t tell any difference.
How many pounds of tomatoes do you need to make sauce?
I generally roast about 3 pounds of tomatoes per sheet pan and that makes about 3 cups of sauce. I have a lot of garden tomatoes so I will often roast 2 pans at once.
One Pound of Tomatoes = One Cup of Roasted Tomato Sauce
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Tools for Making and Freezing Tomato Sauce:
I have this food processor which is great for making big batches. It will hold 13 cups so I can usually process 2 pans of roasted tomatoes at once.
We got this Vacuum Sealer this summer and it is amazing. So simple to use and it’s really quiet. I am using these bags, they are perfect for tomato sauce and other vegetables. If you are freezing garden produce or like to buy in bulk, you will love having a vacuum sealer. The bags cost about the same as zip top bags but they are so much thicker and sturdier.
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- 3 pounds Roma tomatoes
- 1/3 cup olive oil
- 1 teaspoon kosher salt
- 1 teaspoon fresh ground pepper
- 1/4 teaspoon sugar (optional)
- Preheat oven to 400°.
- Wash tomatoes, remove stems and blemishes and discard. Cut tomatoes in half lengthwise. Place on a parchment paper lined rimmed sheet pan.
- Drizzle with olive oil and season with salt, pepper and sugar.
- Roast for 1 hour.
- Remove from oven and cool slightly, 10 to 15 minutes.
- Pour into a food processor, scraping the oil and juices from the pan.
- Pulse tomatoes for about 15 - 20 seconds for a textured sauce and process on high for about 30 seconds for a smooth sauce. Scrape sides and bottom of food processor and continue to process if you still have large chunks of tomatoes.
- Pour into an airtight container and refrigerate for up to 3 days or use immediately.
- For freezing, pour into a vacuum sealer bag or zip top freezer bag and seal.
- Freeze flat for easy storage and thawing.
- To thaw frozen tomato sauce, place in refrigerator a day in advance or thaw in a shallow dish of hot water for about 15 minutes.
Sealed in a vacuum sealer bag, tomato sauce will last up to 1 year frozen. If using standard zip top freezer bags, tomato sauce will keep up to 3 months.
Amount Per Serving: Calories: 147Total Fat: 12gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 10gCholesterol: 0mgSodium: 364mgCarbohydrates: 9gFiber: 3gSugar: 6gProtein: 2g
Nutritional calculations are estimated and may not be accurate.