Season the chicken with salt and pepper while you heat a 12-inch skillet or wok, over high heat, until it’s very hot; at least 2 minutes.
Add 2 tablespoons of the sesame oil and swirl the pan; the oil should thin on contact.
When the oil is hot, add the ginger, garlic, scallions and chile; stir-fry until the garlic is golden at the edges; 2 to 3 minutes.
Add the 2 remaining tablespoon oil, chicken and cashews; stir fry until it starts to brown; 4 to 5 minutes (turn down the heat if the cashews are browning too quickly).
Add the rice wine, soy sauce and dates; simmer until the sauce reduces to a syrupy consistency and the chicken cooks through; 5 to 7 minutes.
Stir in the herbs; sprinkle with rice vinegar or lime juice; serve over rice.