2. Let's soak the rock sugar in warm water for a while, and then scrub it clean.
3. Draw a few knives vertically on the side of kumquat to squeeze out the kumquat core.
4. Put kumquat in a small boiling pot, then add rock sugar and half a bowl of water.
5. Turn to low fire for cooking.
6. The young man cooks slowly for a while, and when the rock sugar melts, there will be more soup, and continue to cook on low heat.
7. Cook until the kumquat is transparent and the soup is sticky, then turn off the fire.
8. After cooking, you can put it in a bottle and seal it. It is convenient to take it with you.