Soma and I always have vegetarian Curryvurst when we are at the WGT in Leipzig. As I did not want to wait a whole year for the experience, I picked up some vegan vurst and combined several sauce recipes until I was satisfied with the result.
I mix and heat:
250ml tomato purée
2 spoons of hot mustard
2 spoons of grated apple
and put in:
salt, pepper
1 dried chili
curry powder
hot paprika powder
Worcester sauce
Sufficient for for about 4 sausages.