How to make
Wash and dry the tomatoes. Depending on their size, cut them in halves or quarters. Arrange them in a tray lined with baking paper and season them with sea salt. Turn the oven on to 230°F (110 degrees) with a fan and dry the tomatoes.
The whole process takes between 3 and 6 hours, but never more than 6 hours. The more tomatoes are dried, the more they will last afterwards, but keep in mind that they will also be harder.
I like the tomatoes to be slightly chewy. Once you decide, that the tomatoes have dried well enough, take them out of the oven and leave them to cool. Peel the garlic and pour it into a jar along with the basil and olive oil.
Do not heat the olive oil or the jar. The amount of olive oil depends on how much you press the tomatoes into the jar. Do not press them too hard.
In terms of storage, you can leave them in a cupboard, in cool and dark place. Enjoy!