6or more slices deli-style or leftover turkey breast
Preheat oven to 425º F. Stir together balsamic vinegar and honey in a non-stick pan over medium heat. Bring to a boil, stirring often, then reduce heat to a low simmer. Cook about 10 minutes to thicken into a syrup; stir often to prevent burning. Remove and let cool.
Meanwhile: Cook bacon in a non-stick pan or skillet over medium high for 6–10 minutes to desired doneness; rotating halfway. Drain off excess fat.
To prepare sandwich: Evenly divide ingredients between both sandwiches. Spread brie, top with bacon, red onions, and sliced turkey. Place 2 prepared halves, and other halves, on a baking sheet and bake for 10–12 minutes to melt cheese and toast bread. Remove and spread with balsamic glaze. Enjoy your sandwich warm, gooey, crispy and toasty.