Method
Combine the puréed apricots with the sugar, lemon zest, and lemon juice. Cover and let stand for 2 hours.
Cook while stirring constantly until the mixture thickens. Confirm the gel on a cold saucer.
Immediately fill the prepared WECK jars. Apply preserving rings, glass lids, and clips.
Following the original WECK directions, process for 10 minutes at 90°C (194°F). Cool undisturbed and verify the seal.