Peel the potatoes and cut into 3inch pieces and steam for 20 minutes.
When ready pass through a sieve or potato ricer if you have one, and leave in a warm place, covered.
In a saucepan gently heat the milk, cream & butter. Just before it comes to the boil take off the heat add the potato and beat with a wooden spoon until fluffy.
Now add the cheese in two batches working it into the potato, followed by the spring onions & chives.
Season the potato with salt & fresh milled pepper and serve.