Cooking the mashed potatoes
Pour the puree into a large saucepan and bring to a boil. Meanwhile, regularly skim off the moss that rises to the surface. Cook for a few more minutes to reduce the puree and concentrate the aromas.
Le remplissage des bocaux
Submerge your glass jars in boiling water to sterilize them, then let them air dry. Fill them with tomato puree while still hot, adding a few basil leaves to flavor the whole.
Deux ans de tomates savoureuses sans une goutte de vinaigre : le secret d’une conservation longue durée
The hermetic seal
Close the jars tightly, then submerge them in a pot of boiling water for about 30 minutes. This step creates a vacuum of air essential for conservation. Let them cool in a cool, dry place before storing them away from light.