2Crack the egg into a bowl and beat it lightly with a fork.
Add the milk, salt, and black pepper to the egg and mix well.
Heat the butter in a non-stick skillet over medium heat until melted and hot.
Pour the egg mixture into the skillet and let it cook undisturbed for about 1-2 minutes until the edges start to set.
Sprinkle the shredded cheddar cheese evenly over one half of the omelette.
Using a spatula, carefully fold the other half of the omelette over the cheese.
Cook for another 1-2 minutes until the cheese is melted and the egg is fully cooked.
Slide the omelette onto a plate and serve immediately.