Step 1

For the marinade: Combine the oil, ginger, curry powder, garam masala, paprika, garlic, shallots, 1/2 teaspoon salt and several grinds of pepper in a large resealable plastic bag. Add 4 boneless skinless chicken breasts or 8 boneless skinless thighs (about 1 1/2 pounds), squeeze out the air, seal tightly and massage gently to coat the chicken with marinade. Refrigerate for 2 hours or freeze up to 1 month; defrost in the refrigerator overnight before cooking.

Step 2

To cook: Transfer the chicken to a foil-lined baking sheet and roast in a 425-degree F oven until cooked through and an instant-read thermometer registers 165 degrees F, 20 to 25 minutes.