Heat your Venison, Wild Boar & Pork Bratwurst in your oven for 5 minutes (10 minutes from frozen) until hot through. Alternatively, for restaurant kitchens, heat in a bain-marie (or water bath with hot water, not boiling) until warmed through. Take your pre-warmed sausages and place on the char-grill for a couple of minutes, turning once, until both sides are nicely charred. Slice the venison sausage in small chunks ready to be plated.