1 ancho chilli or large red dried chilli, deseeded and trimmed
4 tbsp soft brown sugar
4 tbsp cider vinegar
4 x 150g skinless salmon fillets
1 lime, zested, then cut into wedges
200g creme frache or soured cream
chopped coriander, to serve (optional)
Blacken the whole garlic and the onion slices on all sides in a large, dry non-stick frying pan. Remove, cool briefly, then peel the garlic cloves. Soak the ancho chilli in boiling water for 15 mins, drain, then place in a blender with the sugar, cider vinegar, garlic, onion and some salt and pepper. Whizz to a smooth sauce.
Heat the grill. Brush each salmon fillet liberally with the sauce and save any remaining. Grill for 8 mins. Meanwhile, mix the lime zest with the creme fraÃ®che. Serve the fish with extra chilli sauce, a dollop of the creme fraiche and lime wedges for squeezing over. Sprinkle with coriander, if you like, and serve with green beans or rice and a salad.