Place the sausages in
a pan of water. Bring to the boil and drain. Dry on
kitchen paper.
Melt two-thirds of the butter in a
large pan with 15 ml/1 tbsp of the oil. Add the
bratwursts and fry until golden on all sides.
Remove
from the pan with a draining spoon. Add the cream
and boil, scraping up the meat residue, for about 10
minutes until it is thick and reduced by half.
Meanwhile, cook the pasta according to the packet
directions. Drain, toss in the remaining butter and
keep warm.
Add the mustard, sage and a little salt
and pepper to the cream. Heat through, stirring.
Thickly slice the bratwursts and add to the sauce.
Heat through for 2 minutes. Meanwhile, fry (sauté)
the onion rings in the remaining oil until golden.
Drain on kitchen paper.
Pile the noodles on to
serving plates. Top with the sauce and garnish with
the onion rings.