- Dip beer bratwurst briefly in boiling water then brown on both sides in butter. Remove sausage from the pan and dilute the bratwurst fat with a splash of water or beer. Thicken the broth by stirring in cold corn starch. Add salt, sugar, and lemon juice to taste. Let the bratwurst cook in the sauce for 5-7 minutes. Serve with potato dumplings and red cabbage.