Beat the eggs really well until there are no more flecks of white.
Allow the butter to melt and sizzle before pouring in the eggs.
As the egg starts to set, drag with a fork towards the middle of the pan, filling any gaps with the raw egg mix.
Add any fillings once the egg has set, scatter on before folding.
Use a wooden spatula to help you roll up or fold your omelette in the pan, then slide it onto the plate.