Heat a frying pan over medium heat, butter both sides of the bread and grill one side of each piece until crispy and golden. Leave one side of each piece soft.

Take one of the pieces and place the crispy side down on the plate. Cover with a layer of the cheese slices, then the ham, and then the egg.

Whisk the mayo, ketchup, and Sriracha and spread on the soft side of the top piece. Place on top of the egg and close the sandwich. It's about enough for two sandwiches.

Microwave the whole thing for thirty seconds to melt the cheese a bit. Wait a minute to cool, cut and serve.