When the butter has completely melted, pour in the egg mixture and let it cook for a few moments without stirring. Using a spatula, slowly stir or scrape or simply loosen the bottom of the omelet to allow the uncooked egg to come in contact with the skillet. Pause a moment and repeat. Continue to cook the omelet in this fashion until the bottom and sides are gently set, the center is soft and creamy, and the underneath is just beginning to take on a little color.☞ TESTER TIP: It may be necessary to increase the heat to medium-low but be mindful not to overcook the omelet or the egg will turn tough.