For my apricot jam I cook 1 kg of washed and pitted apricots or apricots with a vanilla pod in 1.5 l of water until soft. They are not peeled.
Then I remove the vanilla pod, add cinnamon, lemon juice and a pinch of salt and cook everything quickly, stirring constantly, with the preserving sugar according to the instructions on the packet. Make a gel test.
Fill hot-washed glasses with the mixture and screw the lid on. Immediately turn it upside down.