The Doughnut Bacon Burger, also known as a Luther Burger and Craz-E Burger, consists of a cheeseburger with bacon, but instead of the usual bun, the contents are sandwiched between a Krispy Kreme doughnut (or sometimes two). Though there is some uncertainty about the burger's origins, it is believed that it was first served in a bar in Decatur, Georgia, called "Mulligans." It supposedly got its name from the first person to eat one; legendary singer Luther Vandross.Snopes: Origins
How to Make a Craz-E Burger
Craz-E burger is a bacon and cheese hamburger served on a honey glazed doughnut. Maureen Jordan, the inventor of the "Craz-E" estimates that there are 1500 calories in this delicious treat.