Peel and finely chop the onion. ##Wash, cut lengthwise, remove seeds and chop finely. Melt the fat in a pot. Fry diced onion in it until transparent. Add flour, ##curry## and chili and sweat.
Deglaze with stock and milk and simmer for about 5 minutes while stirring. In the meantime wash the coriander, dab dry, remove the leaves and cut finely. ##Stir in coriander and season with salt and pepper.