Place the sweet potatoes wedges on a baking tray. Drizzle with oil, and season with chilli flakes, salt, and pepper. Place in the oven for 30 minutes until cooked through and golden.
Meanwhile prepare the crème Fraîche dip. In a small bowl, combine the crème Fraîche, chives, shallots, and lemon juice. Stir well. Add salt and pepper and keep on the side until needed.
Place the breaded chicken onto a baking tray and place in the oven for 20 minutes or until cooked through. (ideally, place in the oven 10 minutes after placing the sweet potato wedges to have all the food cooked at the same time.)