Slow Roasted Tomato Confit
tray of roasted cherry tomatoes

Slow Roasted Tomato Confit

Total time: 2 hours 35 minutes
Servings: 2 jars
jar of tomato confit

To make tomato confit the tomatoes are slow-roasted tomatoes with garlic and oil and then stored in jars to use in many different ways.

If you have a glut of tomatoes in your garden or can find them in a larger quantity, tomato confit is a great way to preserve that summer flavour.

This confit is simply slow-roasted tomatoes with plenty of olive oil, garlic, and herbs. When covered in oil and stored it lasts longer than fresh tomatoes and concentrates the taste so you can use less.

cherry tomatoes on the vine
Lovely on-the-vine cherry tomatoes

Make sure to use fresh, ripe tomatoes for the best flavour. I use Vittoria on-the-vine cherry tomatoes, but you can use baby plum tomatoes, or mixed-color cherry tomatoes, whichever you have available.

Exactly What is Confit?

The French word “confit” literally means to preserve.

Before refrigeration, humans needed a way to preserve food so it did not rot. Hunters and cooks dating back to the fifteenth century made an early confit by heavily salting the legs and wings of birds before submerging them in fat and storing them in a cool, dark place to ripen for months. What started out as a form of food security turned into a highly-regarded culinary technique used by French chefs, who then exported confit around the world.

Confit (pronounced con-fee) is a preservation method traditionally used for building up pantry foods – with a focus on poultry, in particular, that’s slow-cooked in its own fat with some salt. However, fruit and vegetables can also be prepared this way.

The best-known example is duck confit. But the term “confit” can be used to describe any ingredient, including vegetables, that has been slow-cooked in fat at a low temperature.

Why Confit?

I suppose the best answer is that poultry and vegetables prepared this way just add an extra dimension of depth of flavour which is unique to confit.

In particular, for me this year has been my first growing my own vegetables and fruit on my allotment and I am discovering methods to preserve the crop so I can enjoy the harvest for longer. Obviously, the freezer and fridge are my initial port of call but I like the richness that confit gives to the preserves, particularly garlic and tomatoes.

jar of tomato confit
Freshly jarred tomato confit

How to Use Leftover Oil

Don’t waste that olive oil! It can be used as normal cooking oil for roasting vegetables, making tomato sauce, or your everyday use. It adds a slight garlic tomato flavour so I wouldn’t add it to sweets, but it works well in most savoury applications.

You Will Need 3 Empty Jam Jars

row of empty jam jars

This recipe makes enough tomato confit to fill 3 x 300ml jam jars.

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jar of tomato confit

Slow Roasted Tomato Confit

These slow-roasted tomatoes are cooked with garlic and oil and then stored in jars to use in many different ways.
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Course: Ingredients, Side Dish
Cuisine: 🇫🇷 French
Diet: Vegan Diet
Keyword: confit, preserves, tomato
Difficulty: Very Easy
Prep Time: 5 minutes
Cook Time: 2 hours 30 minutes
Total Time: 2 hours 35 minutes
Servings: 2 jars
Calories: 113kcal
Author: Richard


  • 1 kg cherry tomatoes
  • extra virgin olive oil
  • salt
  • 2 cloves garlic
  • 1 handful fresh thyme
  • 2 tbsp balsamic or sherry vinegar
  • 1 tbsp icing


  • Heat oven to 110C/90C fan/gas ¼. Halve the tomatoes and place in a roasting tin with all the other ingredients. Mix everything together with your hands, then arrange the tomatoes in rows, cut-sides up. Roast for 2-2½ hrs, turning the tomatoes over after 1 hr. Can be cooled and kept in the fridge for up to a week.
  • Tightly pack the confit tomatoes and tray juices into 300ml jars within 1cm of the tops and screw on lids that have been boiled for 10 mins.
  • Place in a large, heavy-based saucepan with a heatproof plate covering the base. Pour in enough water to cover the jars, then bring to the boil. Reduce the heat and simmer gently for 45 mins. Turn off the heat and leave to cool in the water.
  • Wipe the jars and store in a cool place for up to 6 months. After opening, use within a week.


Makes enough to fill 3 x 300ml jam jars


Calories: 113kcal | Carbohydrates: 25g | Protein: 5g | Fat: 1g | Saturated Fat: 0.1g | Fiber: 4g | Sugar: 16g

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