Potato and Radish Salad

This is a really delicious different potato salad - no mayo, no chives - new flavours!

1.5kg new potatoes, steamed and cut in half if large
100ml your best virgin olive oil
2tbsp wholegrain mustard
Juice of 1/2 lemon
7oz radishes, thinly sliced
4 spring onions, thinly sliced
Punnet of cress

Put the radishes, spring onions, new potatoes (still warm so that they absorb the flavours better) into a bowl.

Mix the mustard, oil and lemon juice in a cup and then pour over and mix.  Snip the cress over the top.