Preheat oven to 350° F
Coat two mini cast iron skillets with ghee or butter to help avoid sticking
Crack 3 eggs into each skillet, being careful not to break the yolks
Sprinkle each skillet with prosciutto and cheddar
Bake 15-20 minutes depending on how runny you like your yolks or using a thermometer ensure the yolk is cooked to 160°. I baked mine for 16 minutes which leaves yolks a little runny on top but harder on the bottom. Note yolks will continue to cook a bit out of the oven when sitting
Let sit 3 minutes before eating
Optional: serve with toast or fruit