Ingredients: mustard, sweet potato, ginger, peanut oil, salt.

Practice: Wash mustard and cut into sections.

Peel the sweet potato, wash and cut into pieces.

Boil, add peanut oil and ginger slices, stir-fry sweet potatoes for 5 minutes, add boiling water, add mustard after boiling, cook for 20 minutes, and season with salt.

Boiled sweet potato

Ingredients: sweet potato, water.

Practice: Wash the sweet potato with clear water. When the water is boiled or steamed in a steamer, put the sweet potato down immediately to make its skin half-cooked in a short time.

Then use slow fire to prevent the water in the pot from boiling. Because the amylase in sweet potato can promote the rapid conversion of starch into sugar at about 60 degrees Celsius. Burn it like this for more than 10 minutes, and cook it with strong fire. Sweet potatoes are especially sweet and soft.

Honey and sweet potato soup

Ingredients: sweet potato, red dates, honey, vegetable oil and rock sugar.

Practice: Wash the sweet potato, peel it, cut it into cubes first, and then cut it into pigeon eggs shapes respectively. Wash the red dates and remove the core.

Heat the wok, put oil on it, stir-fry the sweet potatoes and drain the oil.

Remove the oil from the pot and put it on the fire. Add appropriate amount of water, add rock sugar to boil, add sweet potato with oil, cook until the juice is thick, add honey, add red dates, cook for another 5 minutes, and serve.