1. Cut the onion, slice the ginger, pat the garlic flat, and dry the red pepper.

2. Boil the cold water in the pot, add the duck tongue, boil it for about 3-5 minutes, take it out and rinse it several times. You will find the water in the pot very dirty (so you won't go out to buy cooked food in the future).

3. Pour clean water into the pot. When the water boils, put the duck tongue in blanching water for a while, then take it out and drain it.

4. Pour the soybean salad oil into the wok, and turn on medium fire. When the oil temperature is 6% hot, add the dried red pepper, garlic, scallion and ginger slices, stir-fry for a while, then remove the garlic, scallion and ginger slices and discard them, then put the duck tongue into the wok, add rock sugar, soy sauce, cooking wine and salt, and boil a little water on medium fire, then adjust it to low fire and simmer.