Bring the beef broth to a boil at medium flame and add the sliced shallots,garlic,ginger,ketchup,chili paste,sugar and salt as per taste,mix well and bring to a boil.

Simmer the flame until the broth has reduced and thickened slightly and add prawns and cook at low flame until the prawns turn pink.

Place the noodles into a plate and pour the gravy onto it, lastly,garnish with hard boiled eggs and lime wedges