International
Crack the eggs into a bowl, add a pinch of salt and pepper, and whisk until the yolks and whites are fully combined.
Grate the cheddar and finely chop the chives.
Melt the butter in a nonstick frying pan over medium-low heat until it foams.
Pour in the eggs and leave them for a moment, until they start to set at the edges.
Gently push the eggs from the edges to the center with a spatula to form large soft curds, and keep stirring slowly for 2-3 minutes.
When the eggs are almost set but still glossy, take the pan off the heat and fold in the cheddar.
Let the heat of the eggs melt the cheese, then sprinkle with the chives and serve at once.