1. Cut the lemon in half, squeeze out lemonade with a tool and set aside;

2. Peel the banana, cut into slices, and place evenly on the baking sheet< /p>

3. Brush the front and back sides of the banana slices with lemon juice. If you want sweeter banana slices, add some sugar to the lemon juice and mix evenly.

4. Place the baking sheet in the oven, adjust the temperature to 160°C, and dry slowly for a long time, at least 2 hours. Temperature...

5. During the drying period, turn the banana slices over and dry them according to the situation.