Food EditionCookFrenchDinnerTomato Sauce from Scratch
1 hr 30 minIntermediateServes 4
French · Dinner

Tomato Sauce from Scratch

This is a sauce that relies on patience rather than heavy seasoning. By stripping away unnecessary steps, you let the interaction between the fruit and the heat dictate the character of the finished jar.

Total time
1 hr 30 min
Hands-on
45 min
Serves
4
Difficulty
Intermediate
Before you start

Ripeness is your primary ingredient

Only use tomatoes that are heavy for their size and fragrant. If they smell like water rather than earth, the sauce will lack depth.

  • heavy-bottomed Dutch oven
  • food mill or fine-mesh sieve
  • tongs
  • sharp paring knife
Ingredients

What goes in.

  • 5 lbripe plum tomatoes, halved
  • 1/4 cupextra virgin olive oil
  • 4 clovesgarlic, smashed
  • 1 smallyellow onion, finely grated
  • 1 tspkosher salt
  • 3 sprigsfresh basil
The key technique

Evaporating the water

Simmering at a low, steady bubble allows the water content to evaporate, thickening the sauce naturally without requiring starches or long-term paste thickening.

Step by step

The method.

  1. Sear the tomatoes

    Place the tomato halves cut-side down in the Dutch oven with the oil over medium-high heat. Let them sit undisturbed until the edges begin to blacken and the skins loosen.

  2. Process the fruit

    Use tongs to remove the loose skins. Pass the remaining pulp through a food mill or push it through a sieve into a bowl to remove the seeds.

  3. Aromatize

    Wipe out the pot, add a splash of fresh oil, and sweat the grated onion and garlic over medium heat until the onion turns translucent and loses its sharp bite.

  4. Simmer

    Return the tomato pulp to the pot. Add salt and the basil sprigs. Lower the heat to a whisper, keeping a light simmer for 45 minutes until the sauce coats the back of a spoon.

  5. Finish

    Discard the basil sprigs. Taste the sauce; if it tastes flat, add a pinch more salt. The sauce is ready when the oil separates slightly and floats on the surface.

Variations

Other turns to take.

Arrabbiata

Add two crushed dried red chili peppers to the oil when sweating the garlic.

Pizzaiola

Add a teaspoon of dried oregano during the final 10 minutes of simmering.

Tips & troubleshooting

When it doesn't go to plan.

Tip

Grating the onion on a box grater ensures it melts into the sauce rather than leaving chunks.

Tip

If your tomatoes are especially acidic, add a tiny knob of butter at the very end to soften the finish.

Tip

Do not cover the pot while simmering; you want the steam to escape to thicken the mixture.

Questions

The ones that keep coming up.

Should I peel the tomatoes before cooking?

It is easier to sear them first and peel them once they soften; the skins slide off effortlessly.

Can I use store-bought tomatoes?

Use them only if they are truly vine-ripened. Greenhouse-grown varieties often lack the sugar required for a balanced sauce.

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