Heat the oil
in a medium frying pan (one the
sausages will fit in fairly snugly).
Add the sausages and fry for
8-10 minutes, turning them often.
Turn the grill to high. Splash a
couple of tablespoons of red
wine into the pan if you are using
it, then pour in the stock and stir
in the caramelised red onions.
Allow the mixture to bubble for
3-4 minutes, so it thickens a
little and turns into a rich gravy.
Remove from the heat.
Spread the potatoes so they
roughly cover the sausages and
gravy. Put the frying pan under
the grill for about 8 minutes
until the potatoes turn crisp and
golden. Serve while bubbling
and hot – there is no need to