Crack the eggs into a bowl and add the salt, then beat well with a fork or whisk.
Melt the butter in a large frying pan over a medium-low heat. Once the butter has heated, pour the eggs into the pan.
Using a silicone spatula or wooden spoon, start to swirl the eggs in a circular motion until a few solid lumps start to form.
Once the eggs are approximately half solid and liquid, start to use long sweeping motions with the spatula or spoon to gently gather the egg together. Do not stir vigorously. The larger the clumps, the softer the eggs will remain.
When the egg is almost completely solid but still looking slightly runny in places, remove the pan from the heat. The egg will continue cooking a little more even once off the heat.
Optionally serve the eggs on toast with chopped chives, or serve alongside bacon, sausage, or hash browns.