Make Marinade: Mix the marinade ingredients—soy sauce, black pepper and cornstarch—in a bowl. Add shrimp and set aside.
Make Sauce: Mix the sauce ingredients in a bowl and set aside.
Sauté peanuts: Add 1 tablespoon of oil to a wok or frying pan and heat to medium. Add Sichuan peppercorn (or red pepper flakes) and peanuts and stir-fry until peanuts are golden (about 2 minutes). Remove peanuts and pepper flakes to a bowl.
Sauté Shrimp: Add 1 tablespoon of oil to the pan and bring heat to medium-high. Add shrimp in a single layer and cook just until pink on the bottom, about 2 minutes. Flip and cook on the other side for 1-2 minutes. Remove to bowl with peanuts.
Sauté Veggies: Add final tablespoon of oil to pan over medium high heat. Add ginger, garlic, green onion, bell peppers, onion (any additional vegetables) and szechuan pepper if desired. Stir-fry for 1-2 minutes.
Combine: Add the reserved sauce and cook until the sauce begins to slightly thicken. Stir in shrimp and peanuts and toss to combine.
Serve immediately with a side of hot cooked white rice or fried rice.
Video
Notes
Veggies: Add your favorite veggies like mushrooms, broccoli, carrots, snow peas and zucchini.Szechuan Peppers: Add them to cook with the sauce for an extra kick, just be sure to take them out before serving or else it will be very spicy. You can leave them out if you can't find them, or if you want it more mild.