Cooking the Eggs in Oven To get that classic Egg McMuffin shape to the egg is kind of tricky. Oh wait. No it’s not. Just grab a muffin tin and and very lightly oil each spot in the tin with either butter or spray oil (I used a very small amount of butter on a paper towel.) Then crack an egg in each muffin area! Stick these in a 350 degree oven for about 10-15 minutes. @Skip Prather is trying this now. Has English muffins, cheese & Canadian bacon at the ready for breakfast sandwiches!!