Slow-Roasted Tomatoes Recipe - Making Life Delicious (2024)

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Slow-Roasted Tomatoes Recipe - Making Life Delicious (1)

Three years ago I started looking for a food blogging event for those who garden, hunt, forage, or raise their own food, and when I couldn’t find one I decided to try starting it myself. I didn’t know if any other bloggers would be interested, but as with many things, I just kind of tossed it out there to see what would happen, and here we are now getting ready to celebrate the third anniversary of Grow Your Own. To all of you who have participated, hosted, or just enjoyed the recipes and stories from all the bloggers over the last three years, thank you. I hope you have enjoyed the event as much as we have. And if you haven’t had a chance, check out the July Grow Your Own roundup from Kitchen Gadget Girl Cooks.

We began slow roasting our homegrown San Marzano and Roma tomatoes a couple years ago, and I started with a recipe from my friend Alanna at Kitchen Parade, tweaking each time we roasted another batch, and finally settling on the process described below. The flavor is amazing, and I don’t say that lightly. It’s rich and condensed and when added to other recipes it makes those good things taste even better. The roasting process is long but the active portion is not, so you can start these on a weekend morning and have them ready in the late afternoon while still getting other things done. We pack them in the small Ball plastic freezer jars, top them off with a little more olive oil, then freeze.

Slow-Roasted Tomatoes Recipe - Making Life Delicious (2)

Slow-Roasted Tomatoes Recipe - Making Life Delicious (3) I hope you will join us for the third anniversary of Grow Your Own. Participating is simple and we think it’s a lot of fun to see what other people are growing, foraging, hunting, and raising. If you are new to the event, you can read more about the rules for participating at the Grow Your Own page. Please send your blog post information to me by August 31, and I will post a roundup of all the dishes a few days later. Happy growing and cooking!

Slow-Roasted Tomatoes Recipe - Making Life Delicious (4)

📖 Recipe

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Slow-Roasted Tomatoes

Makes about 24 ounces.

Prep Time15 minutes mins

Cook Time8 hours hrs

Total Time8 hours hrs 15 minutes mins

Course: Pickles, Jams, Preserves

Cuisine: Mediterranean

Diet: Gluten Free, Vegan, Vegetarian

Keyword: garlic, olive oil, summer, tomatoes

Servings: 12

Calories: 76kcal

Author: Andrea Meyers

Equipment

  • half-sheet baking pan

  • small freezer containers, such as Ball plastic freezer jars, 8 ounce size

Ingredients

  • 4 tablespoons olive oil
  • 2 teaspoons dried basil leaves
  • ½ teaspoon kosher salt
  • ¼ teaspoon freshly ground black pepper
  • 5 pounds Italian paste tomatoes (halved (Roma or San Marzano work well.))
  • 1 head of garlic (peeled)

US Customary - Metric

Preparation

  • Preheat the oven to 250° F/120° C.

  • Brush 1 tablespoon of the olive oil all over the bottom of the baking sheet. Sprinkle on the dried basil, black pepper, and kosher salt.

  • Place the tomato halves face down on the baking sheet, keeping them close together. Scatter the peeled garlic cloves amid the tomatoes. Drizzle on the remaining olive oil and add a little more pepper if desired.

  • Roast in the preheated oven for about 8 hours. The tomatoes will shrivel and caramelize a bit. Remove from the oven and cool completely. Slip the skins off and put the tomatoes plus any pan drippings in the small freezer containers. Top each container with a little more olive oil, then seal tightly and freeze. Will keep for up to 6 months.

Nutrition

Calories: 76kcal | Carbohydrates: 8g | Protein: 2g | Fat: 5g | Saturated Fat: 1g | Sodium: 107mg | Potassium: 452mg | Fiber: 2g | Sugar: 5g | Vitamin A: 1574IU | Vitamin C: 26mg | Calcium: 23mg | Iron: 1mg

Tried this recipe?Share in the comments!

More Grow Your Own Recipes

Mango Blueberry Salad with Ginger Vinaigrette

Oven-Roasted Tomatillo Salsa

Roasted Tomatillo Soup with Chicken (Sopa Verde con Pollo)

More Roasted Tomatoes Recipes from Other Blogs

More Vegetables

  • Middle Eastern Eggplant and Tomato Salad
  • Crispy Smashed Potatoes with Herbed Sour Cream
  • Sautéed Green Beans with Spice-Glazed Pecans
  • How to Make Tomatillo Puree

Reader Interactions

Comments

    Thanks for visiting! Let me know what you think!

  1. SharleneT says

    Oh, wow, I really have to try this one... I usually roast a good portion of my tomatoes but not with the garlic... will definitely have to add the garlic!... thanks for sharing... come visit when you can...

    Twitter: SolarChief

    Reply

  2. Lydia (The Perfect Pantry) says

    There's nothing like the aroma of slow-roasting tomatoes! I always cut mine in half to roast them, and I top with garlic from a neighbor's garden and thyme from my own. I pack in small plastic bags to freeze them, or pack them like you do, in a jar covered with olive oil, for refrigerator storage.

    Reply

  3. City Share says

    Wow, I love the idea for a grow your own event. I look forward to seeing the results. I have roasted lots of tomatoes, but I have always used them up within a day or so. I'm going to try freezing them in olive oil. Thanks for the idea!

    Reply

  4. Kalynskitchen says

    Wow, I can't believe it's been three years since Grow Your Own started! That sure did go by quickly. I love slow roasted tomatoes; just the smell alone is enough to make it worth the time to roast them.

  5. Liisa says

    The pervasive aroma of roasted tomatoes is the number one thing I look forward to every summer.

    Reply

  6. Christine@ Fresh Local and Best says

    Andrea, your photos are stunning! This is slow roasted method is my favorite method of preserving the bumper crop of tomatoes.

    Reply

  7. kathy says

    Great info! Love your photography! I hope you will submit this (and more) to http://www.FindingVegan.com

    ~Kathy

    Reply

  8. Jackie says

    I just found your site today. This looks amazing. I've been trying to can my tomatoes, but with the little one around it's tough to get it all done. This sounds delicious and easier to do. What exactly would you use these for later? Would you use them in like tomato sauce or spaghetti sauce?

    Not trying to be thick, I've just really tried to focus this year on planting things we would use and storing things in a manner we will actually use. Too many years or too many jars of pickles. 🙂 Look forward to your reply.

    Reply

    • Andrea says

      Hi Jackie. Yes, slow-roasted tomatoes add lots of flavor to spaghetti sauce, pizza sauce, hummus, and they also make a great substitute in recipes that call for sun-dried tomatoes.

      Reply

  9. Ciaochowlinda says

    As I'm reading this, I'm also roasting tomatoes, but never thought to freeze them. such a great idea.

    Reply

  10. Nate @ House of Annie says

    I sure wish we had some homegrown tomatoes to slow roast. Alas, that will have to wait until we get back to tomato-friendlier environments.

    I'll send along my GYO entry tomorrow!

    Reply

  11. girlichef says

    I adore slow-roasted tomatoes...the flavor is so intense! These are gorgeous =)

    Reply

  12. Denise | Chez Danisse says

    I always roast my tomatoes skin side down, but this is the second time this week I've seen the roasting done skin side up. I just put a cookie sheet in the oven with all of my tomato halves positioned per your instruction. Can't wait to taste them, but as we know, hence the name, there will be quite a wait. Oh well, it's worth it.

    Reply

  13. Anna says

    Do you seed the tomatoes?

    Reply

    • Andrea says

      Hi Anna. No, I leave the seeds in the tomatoes.

      Reply

  14. Marg says

    Thanks for the recipe - it motivated to do something really simple with my 1/2 bushel of San Marzano tomatoes. I did the first batch for 8 hours at 250F as directed, they turned into "sun-dried" tomatoes. Going to use them just as they are, they are so delish. I then tried the next back at 250F for 3 hours. Much better! Made a beautiful passata with them.

    Reply

  15. Deborah says

    These came out both beautiful and delicious! A question -- Is it totally necessary to remove the skins if I'm using them for pasta? Or can I leave them on?

    Reply

    • Andrea says

      Hi Deborah! I'm so glad that you like the tomatoes. You can absolutely leave the skins on.

      Reply

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