Cooking the green-pepper marinade before applying it concentrates its flavor and removes excess moisture, helping the chicken roast rather than steam.
For the crispest skin, dry the chicken thoroughly before seasoning and allow it to rest uncovered in the refrigerator for the final hour of marination.
If the seasoning darkens too quickly during roasting, cover the deepest-colored areas loosely with foil while allowing the remaining skin to continue browning.
Serve with Ofada rice, fried plantains, roasted yams, jollof rice or a crisp vegetable salad.