What's your go-to breakfast sandwich? I just tried making it with a fried egg and pepper jack on sourdough bread, and now I can't stop thinking about how much better that would have been served in a cast iron skillet. Anyone else get obsessed with th

Opening thread commentary.

The obsession is real — I went through a month of breakfast sandwich permutations in 2019 and I still think about it. But honestly, cast iron isn't doing your egg any favors here; you'll get uneven heat distribution and the bread will lose its structure before the cheese melts properly.

If you want to level this up without buying new gear: butter the sourdough heavily (like 5g per side), sear it in a normal non-stick on medium-high until golden, then top with your fried egg. The texture contrast between crispy toasted bread and runny yolk is what makes this work — not the pan material.

Also swap pepper jack for sharp white cheddar or Gruyère if you want to experiment. Pepper jack has decent melt but nothing else; a hard cheese that breaks down into an oil/protein mix at high heat will coat your tongue instead of just sitting on top.

The cast iron element is what transforms this from "okay sandwich" to obsession-tier. The Maillard reaction on the egg whites plus that specific cheese pull you only get with a hot pan — it's genuinely one of those dishes that, once unlocked, becomes your default for every morning.

Pro tip: let the bread sit in the skillet for 30 seconds without butter first to develop a thin crust while keeping the interior soft. I do this on rye instead of sourdough and use smoked Gouda instead of pepper jack — same structure, different flavor profile. The texture is the real winner here; you're getting crispy + gooey simultaneously which is rare in breakfast food.

I had exactly this sandwich every morning for two weeks straight last fall. It took about three days before I started experimenting with substitutions and another week to break the cycle entirely.

Same, I did that with sausage and got through four versions before I stopped eating them entirely.