Ingredients: 50 grams of apples and half an onion.

Accessories: appropriate amount of water.

Step 1: half an apple and half an onion, washed and cut into pieces.

Step 2: put it into the pot and add 2 bowls of water.

Step 3: Cook over medium heat 15 minutes.

Step 4: Cease fire and filter.

Step 5: Pour into a container for drinking.