Preparation :
Cut the tomatoes into slices and blend. You will obtain a puree that you should put into the saucepan where it will be left on the heat until it starts to boil.
While it is on the heat, use a ladle to remove the foam that forms on the surface. Boil for a couple more minutes and then turn off the heat.
Prick the tomatoes with a fork and then place them in glass jars previously sterilized in boiling water. Then fill the jar with the tomato puree obtained.
Finally, to cook them, simply fill a saucepan with boiling water and place the cans of tomatoes inside, sealed with a lid, to create a vacuum. Store them in a cool, dry place.
It is important that the jar is tightly sealed and vacuumed, otherwise the tomatoes will not last 1 or 2 years. This is a great way to always have homemade preservative ingredients on hand. It takes very little to make them and you will always have tomatoes available whether for a quick spaghetti or to season your dishes
