Main methods:
Step 1: First wash and peel the lotus root. Peel it must be fast, otherwise it will easily turn black. Then cut the lotus root into about 2 mm lotus root slices, soak them in cold water, add an appropriate amount of white vinegar, and soak them 10 minutes or so.
Step 2: Dice the red and green peppers, dice the shallots, smash the garlic cloves into minced garlic, cut the ginger into thin strips, and put them in a bowl for later use.
Step 3: Heat the pot and pour in an appropriate amount of oil. When the oil is hot, scoop it out with a spoon and pour it directly into the prepared seasoning bowl.
Step 4: Start boiling water. First add a spoonful of white vinegar to make it crispier. After the water boils, add a spoonful of salt. Pour the cut lotus slices into the boiling water and blanch them. Boil over high heat for 1 minutes. Then take it out, quickly run it through cold water and put it into a basin.
Step 5: Add white vinegar, then pour in the prepared seasoning, and finally add sugar and salt to taste, mix well and serve.