In a bowl, combine the diced chicken with marinade. Mix well and let marinate for at least 20 minutes. Or cover and refrigerator for a couple of hours.
Stir together the Kung Pao sauce ingredients in a small dish. Set aside.
Bring a pot of water to a boil and cook the noodles according to package instructions (while cooking, begin steps 4 & 5). When the noodles are done, drain and place on each serving plate.
Heat a wok or large frying pan over high heat. When hot, swirl in one tablespoon of the peanut oil. Add in the chicken pieces and stir-fry the chicken over high heat until just cooked, about 3-4 minutes. Dish out and set aside.
With a paper towel, wipe clean the same wok/pan. Then heat another tablespoon of peanut oil.
Add the dried chili peppers and roast over low heat until they start to slightly darken, being careful not to burn them. Add in the ginger and garlic, and stir-fry for about 30 seconds or until fragrant.
Turn the heat to high, add in the diced cucumber, and cook for about a minute. Return the chicken back to the wok and give it a quick stir.
Then add in the sauce, and toss everything over high heat to mix, allowing it to carmelize. Feel free to add one or two more splashes of water if you like it to be more saucy.
Finally, add in scallions, give it a stir, then peanuts and ground Sichuan pepper. Turn heat off and dish out equal portions of the Kung Pao Chicken over the linguine. Serve the noodle dish hot with steamed greens/broccoli florets. Enjoy!