How to Make It
Soak 12 wooden skewers in cold water for 15 minutes. Thread the chicken, alternating with the bell peppers, onto the skewers. Transfer to a baking dish.
In a small bowl, whisk the soy sauce with the olive oil and curry powder. Pour the marinade over the kebabs and let marinate for 10 minutes or for up to 1 hour, turning several times.
Meanwhile, light a grill or preheat a grill pan. Grill the kebabs over moderately high heat until golden brown, about 6 minutes. Remove from the grill, brush with the melted butter and serve.