Gourmet hot dog with red onion, chilli and coriander salsa

brown onions, sliced into thick rounds

Sea salt and freshly ground black pepper

brown sugar

Olive oil, for drizzling

red chillies

chopped coriander

red onion, finely chopped

red wine vinegar

bratwurst

pretzel-style hot dog roll

Wholegrain mustard, for serving

Fresh rocket, for serving