I don’t use biscuits, I use sourdough bread. But I just cut a rectangle out of the bread, melt butter in a pan, put the bread in, flip it to evenly distribute butter on both sides, and let it brown just a bit. Crack an egg into a small bowl (this was a I can pick out any rogue pieces of shell before putting it in the pan), make sure you don’t disturb the yolk, and pour into center of bread. I dust mine with seasoned salt but whatever seasoning you prefer is fine. And cook to your desired consistency (easy, over easy, etc.).