1. Dice the tofu, peeled eggs, ginger and garlic, and scallion;
2. Put a proper amount of water in the pot, boil it, put tofu cubes in it, add a little salt, boil it for 2 minutes, drain it and cool it for use;
3. Sauce mixing: put the minced ginger, garlic and scallion into a bowl, add some salt, soy sauce, vinegar, sesame oil and chili oil, mix well and mix into the sauce;
4. Put the diced preserved eggs and dried tofu into a bowl, pour in the sauce, and marinate for about 10 minutes.