Plump shrimp are wok-tossed with peanuts, dried chilies, and Sichuan peppercorn in a sweet-savory sauce. This high protein variation of the Sichuan classic is lower in calories than its chicken counterpart and great for weight loss.
In a small bowl, mix soy sauce, rice vinegar, hoisin sauce, sugar, cornstarch, water, and sesame oil to create the sauce; set aside.
Pat the shrimp dry and toss with 1/2 tablespoon of the prepared sauce and a pinch of cornstarch—this helps the shrimp sear quickly without excess moisture.
Heat a wok or large skillet over medium-high heat. Add Sichuan peppercorns and dried chilies; stir-fry for 30–45 seconds until fragrant but not burnt (monitor heat closely).
Increase the heat to high; add shrimp in a single layer. Sear for 1–2 minutes per side until just opaque, then immediately remove to a plate to avoid overcooking.
Lower the heat to medium, stir-fry bell pepper and scallions for 1 minute, then return the shrimp along with peanuts. Pour in the sauce, tossing constantly for 45 seconds to 1 minute until glossy and the shrimp are just cooked through. Serve immediately.