main ingredients: ginger (1kg), pork knuckle (moderate amount) and egg (moderate amount)

seasoning: brown sugar (moderate amount) and sweet vinegar (moderate amount)

kitchenware: earthenware pot

1. Ginger should be washed, peeled and dried.

2. After that, you should pat the ginger flat, which is for better taste.

3. Pour sweet vinegar, brown sugar, pig's hands, pig's feet and eggs into the clay pot.

4. Put the ginger in the clay pot. After the big fire boils, simmer for about half an hour and then turn off the fire. Do this once a day or so.

5. You can eat it in about a week. Because it's delicious to boil ginger for a few days.