Ingredients: 2 potatoes, corn flour, a little salt.

Method: 1. Peel potatoes, cut into slices, cook, and grind into puree.

2. Add corn flour, knead into a smooth batter, and let it rest for 10 minutes.

3. Roll out into a 0.5 cm thick piece and cut into ring shapes using a round biscuit cutter.

4. Use chopsticks to poke 2 holes in the ring cake to make it look like buttons.

5. Add some oil to the pot. After the oil is heated, add the button cakes and fry over low heat until the cakes float.

Warming tips: 1. Add tomato sauce when eating, it tastes very good.

2. I think it tastes better when eaten hot than cold.