Segment the oranges over a salad
bowl, allowing the segments and any
juice to fall into the bowl. Stir in the
vinegar, onion and radishes, add some
seasoning and allow to stand for 5 mins.
Divide the smoked salmon between 4
plates. Toss the watercress through the
radish mix, then put a handful on top of
the salmon, making sure you have a
bit of everything on each plate. Serve
with any juices from the bowl poured
over, and some brown bread if you like.