Knackwurst (Knockwurst) Photo: © Richard Oechsner - Fotolia.com             Wurst Category:  Boiled Wurst Good for Grilling?  No Good as coldcuts (sliceable)?  No Spreadable?  No Eat this wurst warm?  Yes Serving & Cooking Suggestions The Knackwurst is eaten warm. Heat the Knackwurst in hot (not boiling) water for 10-15 minutes. Traditionally, it is eaten with Sauerkraut and potato salad or mashed potatoes.