1. Wash and remove the fruit pedicles.
2. Use a knife to cut the cross at the fruit base for easy taste.
3. Bring the water to a boil, put in rock sugar, just equal to the kumquat.
4. Cook on medium heat for 40 minutes, turning constantly to prevent sticking to the pan.
5. Boil until it is transparent, add salt, and collect the juice on high heat. You can bake it in a microwave oven on medium-high heat for 4 minutes, turning it once every two minutes to make the preserves more elastic and chewy.
Tips:The effect of adding salt makes the sweet taste better, and the cooking process must be flipped.
