Begin by cutting the jalapenos in half lengthwise. Use a spoon to gently scrape out the membranes and seeds. (If you like your poppers with a bit more spice, leave some of the seeds!) In a bowl you’ll combine the cheeses, onions and garlic. Beat them together with a mixer until blended. Stuff each jalapeno half with cheese mixture. Gently wrap half a piece of bacon around the jalapeno, covering as much of the cheese mix as possible. Use a toothpick to secure the bacon. Cook the poppers on a rack over a sheet pan (there will be a lot of grease from the bacon) for an hour or until the bacon is sizzling.