Preheat the oven to 375degrees Fahrenheit
Open the bacon and begin tightly rolling the roses, one piece at a time. Start with the widest end of the bacon, with the fat edge down. I like to use a combination of thick and thin bacon so I end up with a variety of rose shapes.
Place all of the bacon in the muffin pans pushing down slightly to "seat" them. The bottoms will flair out a bit.
Place in the oven and cook for 30-40 minutes. Check in on them occasionally. Sometimes you will have to lift the rose so the grease will drain out the pan.