Heat to medium high. Then add the 1 pound of green beans WITHOUT oil, which will ensure any surface water evaporates for maximum charred, chewy goodness. This process will take 2-3 minutes.
Then, you’ll add 2 tablespoons of peanut oil or canola oil and continue the dry frying process until the green beans are crispy, charred, wilted, and cooked to your desired texture. This process can take up to 10 minutes, so be patient and keep an eye on your pan. If it starts to smoke, you can decrease to medium.
Remove the green beans and set aside. Then add in your ½ cup ground pork and fry until crispy and brown. Next, add your aromatics: 3 minced garlic cloves, 3 chopped scallions, 6 re-hydrated chili peppers, ¼ cup ya cai, and 1 teaspoon of ground red Sichuan peppercorn. Stir-fry for up to a minute and pour in the dark soy sauce, stirring to coat the pork.
Add the green beans back to the skillet and add the 1.5 tablespoons of light soy sauce, 1 teaspoon of black vinegar, and 1 teaspoon sugar. Toss to combine and taste, adding ¼ teaspoon of salt or more to reach your desired level of saltiness.
Serve over rice or as part of a family-style Chinese meal and enjoy!