Easy Canned (or frozen) Marinara Sauce
This Easy Canned (or frozen) Marinara Sauce gives you fresh marinara sauce that you can use all year long. Roasted garlic, onions and tomatoes combine with lots of fresh herbs to create a delicious sauce that is extremely versatile. You can use this sauce on pasta, pizzas or in soups. You can’t beat the flavor from the fresh tomatoes.

I love fresh marinara sauce, and every year when summer comes to an end, I am sad to see all of the fresh vegetables, herbs and especially tomatoes, go. Canning the tomatoes is the best way to preserve them so that you can have them all year long. However, canning always seems intimidating to me, especially when making a tomato sauce. Tomatoes are filled with water and in order to create a sauce that is characteristic of the store bought marinara sauces, you have to cook all of the water out of the tomatoes, which can take forever. Not only that, but most sauce recipes require you to remove the tomato shell and the seeds, which can take time.

This sauce eliminates all of my worries. The majority of the moisture from the tomatoes cooks off in the oven after 30 minutes. Then the entire tomato is blended – shell, seeds and all, into a smooth, thick sauce. I, personally, don’t feel there is a need to remove the shells or the seeds, as it all gets blended together. Sure you can see a few of the seeds, but they are hardly noticeable, and they don’t affect the taste. If canning still intimidates you, you can certainly freeze this sauce instead.

Here’s what you need to know…
It is important to wrap the garlic heads in aluminum foil. This will prevent them from burning in the oven, and will allow them to roast perfectly, giving you that nice golden, soft roasted garlic clove. Trust me, the roasted garlic makes this sauce so good. When the garlic is roasted, it gets a slight sweet taste and the garlic itself is not as potent as raw garlic, hence why you can use much more in the sauce. To roast the garlic, you’ll want to cut the garlic head in half. It is okay if some of the garlic cloves fall out of the papery shell. Just put them in a square of aluminum foil. Place half of the garlic head in a square of aluminum foil. Drizzle with olive oil, then season with salt and pepper. Loosely wrap the garlic up. Repeat with remaining garlic.


Add the quartered tomatoes, quartered onions, and loosely wrapped garlic to a sheet pan. Drizzle the vegetables with olive oil, then season with salt and pepper. You will need to use more than one baking pan. Make sure your pan has sides, as a lot of water will cook out of the tomatoes.

In this sauce, you do not need to remove the shells or seeds. Everything gets blended together to create a smooth sauce. You may still see a few of the seeds, but they do not affect the taste. Use a slotted spoon to scoop the tomatoes and onions off the baking pan to drain as much liquid as possible.

It is important to taste the sauce after blending to make sure it suits your taste preferences. Add a few more fresh herbs or more salt and pepper if needed, then blend to combine.


You can certainly freeze this sauce if you desire. After blending the sauce, pour into freezer safe containers, then freeze.
If you are canning, you need to add 1 tablespoon lemon juice for a pint jar. This helps with the preservation of the tomato sauce. It lowers the pH of the tomato sauce enough to allow for safe water bath canning. You may add a teaspoon of sugar at this step too, if desired, to offset the acidity of the lemon juice.

Fill the jars with the warm sauce, using a funnel, then place lid on jars.

Place cans on a rack, then place in water bath canner.


Place lid on top, then bring water to a boil. Lower the heat so that it is at a rolling boil. Process in water bath canner for 35 minutes. Adjust burner so that it maintains a rolling boil throughout the entire processing time. This temperature will be lower than when you first had to bring the water to a boil. You just need enough heat to maintain a slow rolling boil. Once processing time is complete, remove lid and allow to sit for 5 minutes. Be careful, as steam will be hot. Remove jars with a jar lifter and set on a wire cooling rack.

Make sure the jars are sealed by pressing on the center of the lid. If the lid center pops back up, reprocess jars within 24 hours, or store in refrigerator and use within 1-2 days. Store jars in a cool, dark place. I like to use my sauce within a year of canning it, but as long as the seal remains intact and the lid is not bulging, you can store these for up to 18 months.
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Easy Canned (or frozen) Marinara Sauce
- Total Time: 1 hour 15 minutes
- Yield: 6 pint jars 1x
Description
This Easy Canned (or frozen) Marinara Sauce gives you fresh marinara sauce that you can use all year long. Roasted garlic, onions and tomatoes combine with lots of fresh herbs to create a delicious sauce that is extremely versatile. You can use this sauce on pasta, pizzas or in soups. You can’t beat the flavor from the fresh tomatoes.
Ingredients
- 9 pounds (I recommend saucing tomatoes like Roma and San Marzano, but you can use whatever you have)
- 3 sweet onions, quartered
- 3 heads garlic
- Salt and pepper
- 3 tablespoons olive oil
- 1/2 cup fresh basil
- 2 tablespoons fresh thyme
- 2 tablespoons fresh parsley
- 2 tablespoons fresh oregano
- 6 tablespoons lemon juice
- Sugar (optional)
Instructions
1. Preheat oven to 400F.
2. Cut out the core/stem of tomatoes, then cut tomatoes in half or in quarters, depending on how big they are. Cut the onions in quarters. Cut the garlic head in half (the outer paper shell should hold the garlic cloves together, but it’s okay if they fall apart). Place each garlic half in a square of aluminum foil, then drizzle with olive oil and season with salt and pepper. Loosely wrap up the garlic.
3. Add tomatoes, onions and garlic to a large baking sheet with sides (you will need more than one). Drizzle tomatoes and onions with olive oil, then season with salt and pepper. Bake in 400F oven for 30 minutes.
4. Remove the garlic from the aluminum foil and squeeze the roasted garlic cloves out into a blender. Use a slotted spoon to scoop tomatoes and onion into blender and blend to desired consistency. Add in fresh herbs and season with salt and pepper according to your taste preferences. Blend until combined. Taste the sauce to make sure it is to your liking. You can always add a touch more herbs or salt and pepper if desired.
5. If you plan to freeze the sauce, pour the sauce into a freezer safe container and freeze. If you plan to can, proceed to the next step.
6. Place 1 tbsp lemon juice in 6 pint jars. If desired, to offset the acidity, you may add 1 teaspoon sugar to each jar. Fill pint jars with sauce. Fill a water bath canner half full with clean, warm water. Add jars to the canning rack, then place rack in bottom of canner. You may need to adjust water so that it is 1-2 inches above cans. Place lid on top, then bring water to a boil. Lower the heat so that it is at a rolling boil. Process in water bath canner for 35 minutes. Adjust burner so that it maintains a rolling boil throughout the entire processing time. This temperature will be lower than when you first had to bring the water to a boil. You just need enough heat to maintain a slow rolling boil.
7. Once processing time is complete, remove lid and allow to sit for 5 minutes. Be careful, as the steam will be hot, when removing the lid.
8. Using a jar lifter, remove jars from the canner. Place jars on a cooling rack. Allow to cool for 12-24 hours. After cooling is complete, check the seal – press on the center of the canning lid. If it pops back up, it is not sealed. Reprocess within 24 hours, or refrigerate immediately and eat within 1-2 days. Store sealed jars in a cool, dark place.
9. The center of the lid on the can should never bulge out. If it does, discard the can.
Notes
I like to use my sauce within a year of canning, but you can store these for up to 18 months as long as the seal remains intact and jars are not bulging.
- Prep Time: 40 minutes
- Cook Time: 35 minutes
- Category: Canning
- Method: Water Bath Canner
- Cuisine: Italian
I finally reailzed why my homemade sauce was too watery! The roasting is the key. This recipe is a game-changer for us! – Julie, Louis, Babette, and Paul
Julie, Louis, Babette and Paul,
Thank you so much for making the homemade sauce! Roasting is definitely key. It adds great flavor and helps get rid of that extra moisture. I’m so happy you enjoyed it and had fun making it :).
-Jolene
What liberties can I take with the seasoning? As long as I add the lemon juice I should be fine right? I canned spaghetti sauce before using a recipe and hated it. But I planted a bunch of Amish paste tomatoes to try again! I’ve heard roasting is a game changer but I wanted to make sure about seasonings.
Denita,
Adding dried herbs would work perfectly fine! The flavors intensify over time, so I would recommend adding 1/4 teaspoon per pint. I hope that helps!
-Jolene