Give your bangers & mash an Irish twist with thick and delicious Guinness gravy. Fry onions in butter & add a pinch of cornflour. Add 250ml beef stock & 125ml Guinness. Reduce and serve. #SimpleSuppers Cook sausages using NEFF CircoTherm 190C. By placing a grid over the universal pan, there’s no need to turn over. Cook for 20-25 mins.