1. Sauté onion and garlic in oil until translucent. Add curry powder and continue to sauté until fragrant.
2. Add chicken and stir over medium heat until no longer pink. Add honey, soy sauce, nut butter, and water, and stir until creamy.
3. Simmer until the sauce thickens, about 10 minutes.
4. Serve over basmati rice and garnish with scallions.