When is too much of a good thing a great thing? When you take a bite of this over-the-top sandwich. This is a once in a great while treat, but no breakfast sandwich I have ever had comes close. I feel a little guilty giving you a recipe for this sandwich; it is really more of a sandwich-building instructional. You can certainly make the croissant and hash brown from scratch (I have made this sandwich with those homemade ingredients before, and while delicious, the flavor was not vastly improved and the work load was considerably larger). I do recommend getting a really good, buttery, flaky croissant, so go to a bakery if you can. However, the rest of the greasy saltiness of the sandwich will more than make up for it if you opt for a grocery store croissant. The melty cheese, the runny yolk, the sausage, the crispy bacon, the crunchy hash brown and surrounded by the flaky buttery croissant….. How have you not made this already? I need to go make myself another!