Fry the sausages brown on all sides in a little oil or clarified butter and place warm between two warmed plates.
First roast the tomato paste in the frying fat, then fry the onion rings until light brown, add the stock and malt beer and let the mixture simmer gently for about 5 minutes. Thicken the sauce with the cornstarch and season to taste.
Cut the sausages into bite-sized pieces and reheat them in the sauce. We also have boiled potatoes or mashed potatoes.