The materials that need to be prepared in advance are: apple 1 piece, 2 pieces of rock sugar, and proper amount of medlar.

1, Step 1: Peel the prepared apples, cut them with a knife and put them aside.

2. Then put it into the pot and add the right amount of water and rock sugar.

3. Cook on low heat for 6 minutes, then add Lycium barbarum.

4. Cook for another 6 minutes, and turn off the fire to cool.

5. Then pour it out, and it will be fine.