Roasted Tomato Sauce Recipe

Roasted Tomato Sauce Recipe


There’s nothing that I look forward to more in the summer than tomato season!  Yes!  That’s because I can make (and can!) this amazing Roasted Tomato Sauce recipe!  I can’t wait to show you how it’s done!

First, you’re going to need some amazing and fresh tomatoes! 

Meaty tomatoes, like Roma, work best. 

I happened to have some very meaty canning tomatoes, they will make an awesome roasted tomato spaghetti sauce!

I got a great deal on these tomatoes from my friend who runs a farm stand nearby, straight from the Amish produce market….woot!!  The tomatoes in my garden aren’t ready yet!

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tomatoes in box

After giving the tomatoes a good washing, assemble your ingredients and supplies.


*Strong cutting board

*Sharp knives

*Good quality stainless-steel cookie sheets

*Small bowl for tomato seeds



Olive oil

Whole cloves garlic

Balsamic vinegar

Dried oregano

Dried basil

Salt and pepper

supplies for marinara sauce

After slicing your tomatoes in half, I recommend using your thumb to remove the seeds.  Let the seeds drop into a small bowl, and then put your halves on your cutting board to slice.

de-seeding tomatoes

I’ve got a few canning jars lined up here, my plan is to can this marinara sauce as soon as it’s finished.  Don’t worry, I’ll show you how to do that as well!

cutting board with knives

Slicing your tomatoes into 6ths works nicely, as it gives the tomatoes enough flesh to roast evenly.  The tomatoes will shrink considerably so don’t worry about loading up your cookie sheet.

I also suggest that you use a stainless steel cookie sheet or even a roasting pan.  Aluminum pans won’t be strong enough to withstand the high heat required.

tomatoes on cookie sheet

By now, your kitchen will be smelling so wonderful!  My family members were coming down the stairs, asking what I was cooking!  They couldn’t wait until dinner time!

roasting tomatoes on cookie sheet

Gorgeous!  What wonderful homemade roasted tomato marinara sauce you are making!!!

roasting tomatoes with garlic

Once everything is assembled, just put your pan in the oven and roast at 425 degrees for about an hour, turning about half-way through.

roasting tomatoes

See how much the tomatoes shrink?

roasted tomatoes

Once your amazing roasted tomatoes are done cooking, let your sauce cool.

Then put everything on your pan into a blender and pulse to desired consistency.  You could use an immersion blender as well.

How to Dehydrate Tomatoes

tomato sauce in jars

My family eats a lot of marinara sauce, so I made several batches and canned my sauce.  It’s processed in the same way as canning tomatoes!

canning spaghetti sauce

So simple, delicious and nutritious!

home canned spaghetti sauce

Roasted Tomato Marinara Sauce

Prep Time 1 hour 10 minutes
Cook Time 1 hour
Servings 4 cups


  • 5 # fresh meaty tomatoes, like Roma
  • 4 cloves garlic, peeled and sliced
  • 2 tbsp olive oil
  • 1 tbsp balsamic vinegar
  • 2 tsp dried oregano leaves
  • 2 tsp dried basil leaves
  • 1 tsp fine salt
  • pepper


  1. Cut and de-seed all tomatoes, slicing into 1/6 slices and place on roasting pan.

  2. Peel and slice garlic, distribute evenly over tomatoes.

  3. Spread olive oil and balsamic vinegar evenly over tomatoes.

  4. Sprinkle oregano, basil, salt and pepper evenly.

  5. Put pan in oven pre-heated to 425 degrees and roast for 60 minutes, turning tomatoes half way.

This recipe for Homemade Roasted Tomato Marinara Sauce was inspired by a recipe on Seasons and Suppers!


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