Combine the oil, lemon/lime juice, spices, garlic and ginger in a bowl and mix well.
Place the chicken, potatoes and onions on a large sheet pan and pour over the chicken and potatoes. Massage the sauce into the chicken.
Place the sheet pan into the oven and allow to bake for 30-35 minutes until the chicken is cooked through and the skin is starting to caramelize. The sugar in the sauce will caramelize quickly so if your chicken is browning too fast, simply cover loosely with a piece of foil.
Remove from the oven then serve with lime wedges, fresh coriander/cilantro and side dishes of your choice.