Steps

1. Dice pork tenderloin into 1/2-cm or 1/4-inch cubes.

2. Add salt and corn starch to pork tenderloin. Mix well to marinate. Proceed with next steps while pork tenderloin marinates.

3. Place Sichuan pepper in a bowl. Add oil. Steam for thirty minutes.

4. While Sichuan pepper is steaming, place pan on stove under medium heat..

5. Dice firm tofu into 1/2-cm or 1/4-inch cubes.

6. Put firm tofu into pan.. Add soy sauce. Cover and cook.

7. Mince garlic and add to pan.. Turn heat up to medium-high and stir.

8. Peel ginger, grate, and add to pan.. Stir.

9. Add pork tenderloin to pan.. Stir and cover.

10. Cut green onion into narrow rings.. Set aside.

11. Retrieve Sichuan pepper from steamer. Set aside.

12. Remove pan cover. Stir regularly for even cooking of pork tenderloin.

13. When pork tenderloin is almost fully cooked, reduce heat to medium. Add pork tenderloin and stir.

14. Cover pan and cook for one more minute.

15. Turn off heat and let sit for two minutes.

16. Lightly fry the steamed Sichuan pepper with the oil. Filter oil to discard Sichuan pepper. Pour oil evenly into pan and serve.

Notes

1. Minced pork can be used in place of pork tenderloin. Such would obviate dicing the meat.

2. Texture of firm tofu matches well with diced pork tenderloin, although silken tofu also works.

3. Oil at 100°C (212°F) is the best medium to entice the tingling sensation from Sichuan pepper. Lightly frying would release the fragrance.