Slice up your bacon into thin slices and add them to a pan on medium heat.

Take out your bacon, keeping as much of the drippings in the pan as possible. Rest your bacon on paper towels to cool off and get extra crispy.

Cut your hard-boiled eggs in half. Scoop out all of the yolks with a spoon and add them to a bowl.

Add your mayonnaise, dijon mustard, cayenne pepper, bacon fat, and HALF of 1/4 tsp. rosemary. The rest will be used to garnish.

Add some small pieces of bacon to the bottom of the eggs, where the yolk used to be.

Mix all of your ingredients together in your bowl. Add the mixture to a piping bag or ziploc with a corner cut off.

Pipe your mixture on the top of the eggs. Add bacon and the rest of the rosemary for garnish.