The first recipe I had was lousy. it didn't tell you when to include several ingredients or how to treat the eggs. So, I started in a saucepan, like the recipe said, but it should have said oven proof, because you need to bake the eggs. So, I had to heat the oven, remove the eggs, transfer the sauce to the cast-iron skillet and then put the eggs back in. It wasn't perhaps as pretty as the photos, but the taste is very good.