There’s something about homemade tomato sauce that just feels comforting.

The smell fills the entire house, the tomatoes become sweet and caramelized in the oven, and with just a handful of pantry spices, you end up with a sauce that tastes like you spent all day making it.

The best part? It’s surprisingly simple.

I made a quick walkthrough video showing my process, but I also wanted to share a few extra tips that didn’t fit on the screen.

What You’ll Need

• Fresh tomatoes, cut in half
• Onion
• Olive oil
• Salt
• Black pepper
• Garlic
• Italian seasoning

That’s it! No complicated ingredient list.

My Favorite Trick: Protect the Onions

Here’s one little tip that has made a big difference for me.

Instead of scattering the onions across the pan, place the onions on the bottom of the pan first. Then arrange the tomatoes skin side down (cut side up) on top of them.

As the tomatoes roast, they release their juices, which help protect the onions from burning while everything caramelizes together. The onions become soft, sweet, and packed with flavor instead of drying out.

Roast Until Everything Is Beautifully Caramelized

Drizzle everything with olive oil and season generously with:

• Salt
• Pepper
• Garlic
• Italian seasoning

Roast at 400°F for about 1 to 1½ hours.

Don’t worry about watching the clock too closely. You’re looking for the edges of the tomatoes to become browned and caramelized. That’s where so much of the flavor comes from.

Don’t Leave Behind the Good Stuff

Once everything is roasted, transfer the entire contents of the pan into a pot.

And yes…that means all of the liquid too!

Those browned bits and juices are packed with flavor. They become part of the sauce.

Blend Until Smooth

Use an immersion blender right in the pot, or let everything cool slightly and carefully transfer it to a blender.

Blend until you reach your favorite consistency.

Return it to the stove and let it gently simmer. This is when I like to taste the sauce and adjust the flavors.

I usually add:

• A little more garlic
• Italian seasoning
• Salt and pepper, if needed
• A spoonful of sugar to help balance the acidity of the tomatoes

If you want to make it your own, here are a few other delicious additions:

• Fresh basil
• Fresh oregano
• Parmesan rind (remove before serving)
• A splash of balsamic vinegar for richness
• Crushed red pepper flakes for a little heat
• A pat of butter for a silky finish
• Roasted red peppers blended into the sauce
• A splash of red wine while it simmers
• Fresh parsley stirred in at the end

If Your Sauce Gets Too Thick…

One of the easiest mistakes is letting the sauce simmer until it becomes thicker than you wanted.

Start by adding ¼ cup of water, stir well, and let it simmer for another minute or two.

If it still feels too thick, add another small splash until it reaches the consistency you like.

Remember: you can always add more water, but it’s much harder to thicken the sauce once you’ve added too much.

The Best Tomatoes for Homemade Sauce

Almost any ripe tomato will work, but some varieties make an even better sauce.

• Roma tomatoes are my favorite because they have fewer seeds, less water, and create a naturally thicker sauce.
• Garden tomatoes are perfect if you have an abundance from your backyard. They tend to be juicier and may need to simmer a little longer, but they have incredible fresh flavor.
• Heirloom tomatoes can add wonderful depth and sweetness. Mixing different varieties is a great way to create a rich, homemade taste.

Don’t overthink it, use what you have! Roasting brings out the natural sweetness in almost any tomato.

How to Store Homemade Tomato Sauce

One of my favorite things about making homemade sauce is having extra for another night.

• Store in an airtight container in the refrigerator for 4–5 days.
• Freeze in freezer-safe containers or bags for up to 3 months.
• If freezing, leave a little room at the top of the container since the sauce will expand as it freezes.

It’s such a nice feeling to pull out homemade sauce on a busy weeknight.

Ways to Use Your Homemade Sauce

This sauce is incredibly versatile! Here are some of my favorite ways to use it:

• Tossed with your favorite pasta
• Homemade pizza
• Lasagna
• Chicken Parmesan
• Meatball subs
• Stuffed shells or baked ziti
• As a dipping sauce for garlic bread or breadsticks
• Mixed into soups or stews for extra tomato flavor
• Spooned over roasted vegetables
• As the base for shakshuka or baked eggs

Why I Love Making Sauce This Way

I love recipes that don’t require standing over the stove for hours.

The oven does most of the work, the cleanup is minimal, and the roasting creates incredible flavor with very little effort.

It’s one of those recipes that makes your entire home smell cozy, and it freezes beautifully if you make a larger batch.

Sometimes the simplest recipes end up becoming the ones you make over and over again.

If you give it a try, let me know what seasonings you add to make it your own!