Bacon sundae is a product offering from Burger King for the summer of 2012 in the U.S. Denny's offered a maple bacon sundae in 2011, part of its limited-time "Baconalia!: A Celebration of Bacon" menu. Burger King's bacon sundae is made vanilla soft serve ice cream and topped with hot fudge, caramel, bacon crumbles and a piece of bacon. The treat packs 510 calories, 18 grams of fat and 61 grams of sugar. It was first introduced in Nashville, Tennessee and is being launched along with various BBQ sandwiches, sweet potatofries, and frozen lemonade. Following a menu makeover, the summer offerings arrive as Burger King and other fast-foodchain restaurants are facing growing competition from specialty upstarts such as Five Guys Burgers and Smashburger.