Preheat oven to 180℃ (160℃ fan forced). Lightly grease a large baking/roasting pan with non-stick cooking spray and arrange chicken into pan in a single layer, flesh side up. Set aside.
Place butter, honey, mustard, curry powder and 1 teaspoon of salt into a small saucepan. Whisk over a medium heat until butter melts and mixture comes to the boil.
Carefully pour the hot melted sauce over the chicken and turn to coat.
Bake in the oven for 1 hour, basting occasionally with a spoon, and more often in the last 20 minutes of cooking time or until chicken is cooked through and is nicely glazed and sticky (See Notes below). Serve chicken and sauce, cooked rice and steamed greens of choice. Garnish with sliced spring/green onions and red onion if desired.