Step 1 of 3
Mustard Champ
Boil the potatoes for 15 minutes, or until tender. Drain, then mash.
Step 2
Heat the milk and half the butter in the corner of the pan, then beat into the mash along with the wholegrain mustard.
Step 3
Gently fry the spring onions in the remaining butter for 2 minutes until just soft but still a vibrant green. Fold into the mash and serve.