Preheat the oven to 200°C. Combine the flour and chilli powder with some salt and pepper in a bowl, then dust the Dover sole with this mixture, gently shaking off any excess. Heat a large, non-stick, ovenproof frying pan over a medium-high heat. Add the olive oil, then when it’s hot lay the sole into the pan (white skin side down if you’ve part-skinned them) and fry, without moving them, for 3 to 4 minutes, or until the coating forms a golden-brown crust.
Turn the fish over and transfer the frying pan to the top of the hot oven (or transfer the fish to a warmed baking tray and place in the oven) and cook for a further 8 to 10 minutes, or until the sole fillets are cooked through and the flesh is opaque.
Meanwhile, heat another frying pan with a small amount of olive oil in. Add the sliced red chillies and garlic, then once they are sizzling add the samphire. Pan fry for about 2 to 3 minutes.
To make the sauce, melt the butter in another frying pan over a medium heat, and let it bubble for 2 to 3 minutes, or until it turns a nut-brown colour. Reduce the heat to low, then add the ginger, lime juice and chopped coriander. Warm everything through but don’t overheat the sauce or it will separate. Season to taste.
Serve the sole with the samphire and spoon the ginger and lime sauce over the top. It could also be accompanied by new potatoes, chips or jacket potatoes.