Roasted tomato sauce without preservatives: How to preserve the taste of summer until winter recept

Name: Roasted tomato sauce without preservatives: How to preserve the taste of summer until winter
Prep time: 30 min
Cook time: 30 min
Total time: 30 min
Yield: 30
Ingredients: 3.5 kg ripe tomatoes; 4 large onions; 2 large heads of garlic; 1 dl olive oil; 2 tablespoons sea salt; 2 tablespoons sugar; 1 teaspoon freshly ground pepper

Easy to prepare
30 portions
30 minutes

Jan, 19. 12. 2025

Print recipe

Do you want to process your tomato harvest without chemicals and with minimal work? This homemade roasted tomato sauce from the oven will enchant you with its aroma and taste. Thanks to slow roasting and proper storage it will last in the pantry for months. It contains no preservatives, colorings or excess fat — just pure ingredients and an honest method.

For 30 portions

Ingredients

3.5 kg ripe tomatoes
4 large onions
2 large heads of garlic
1 dl olive oil
2 tablespoons sea salt
2 tablespoons sugar
1 teaspoon freshly ground pepper

1 packet Italian herb mix (or homemade: basil, oregano, marjoram)

Preparation procedure

Preparation of ingredients Wash the tomatoes and cut into pieces. Peel the onions and chop coarsely. Separate the garlic into cloves, you don't need to chop — it will soften during roasting.
Seasoning and roasting Pour the oil into a deep baking tray, add the vegetables and sprinkle with salt, sugar, pepper and herbs. Roast in a preheated oven at 200 °C for about 2 hours. Stir after one hour.
Blending and cooking After baking, blend the mixture with an immersion blender. Let it simmer for a few minutes and adjust seasoning as needed (salt, sugar, herbs).
Canning without chemicals Fill the finished sauce into hot sterilized jars. Close them, turn upside down and wrap in a blanket (so-called dunszt). Let cool for 24–48 hours.

Preparation time: 30 minutes

Roasting time: 2 hours

Total time: approx. 2.5 hours

Number of servings: approx. 30 jars (380 ml)

Tips for improvement

Add roasted bell pepper or zucchini for a milder flavor
Use as a base for pizza, in pasta or on toast
Serve with fresh basil or Parmesan

Recipe conclusion

This homemade roasted tomato sauce is a great way to preserve the taste of summer without the need for preservatives. Thanks to slow roasting the sauce gains a full, caramelized flavor and suits a wide range of dishes. Moreover the preparation can be done by anyone — the result will surprise you with its intense flavor and versatility.