Delicious Caramelized Beer Onion and Bacon Burgers! http://www.lacuisinehelene.com/2013/08/caramelized-beer-onion-and-bacon.html In 10-inch skillet, heat 1 tablespoon bacon drippings over medium-high heat. Add onions; cook about 15 minutes, stirring frequently, until softened. Reserve 1/2 cup of the beer. Stir remaining beer into onions. Heat to boiling; reduce heat to medium and simmer uncovered, stirring occasionally, until onions are golden and liquid has evaporated, about 30 minutes. Cool. Meanwhile, roughly chop 4 slices of the cooked bacon; set aside. Roughly chop half of the onion mixture; stir into chopped bacon. In medium bowl, stir chopped onion and bacon mixture into beef. Add salt and pepper. Shape beef mixture into 4 large patties, thinner at centre and thicker at edges for even cooking. In 10-inch skillet, heat remaining bacon drippings over medium-high heat. Add patties; cook 8 minutes for medium-rare, 10 minutes for medium, 12 minutes for medium-well, turning once. After turning, add reserved 1/2 cup beer to burgers, then top burgers with cheese. Cover skillet to melt cheese. Place burgers on bun bottoms; top with lettuce leaves, tomato slices, and remaining caramelized onions. Cut remaining 4 slices bacon in half; criss cross 2 pieces on top of onions on each burger, and cover with tops of buns.      

Servings:  4
Prep Time:  20
Total Time:  30