Preheat the oven to 350 degrees Fahrenheit.
Cover a rimmed baking sheet with aluminum foil and place a wire rack on top. Set aside.
In a medium mixing bowl, combine the brown sugar, maple syrup, honey dijon mustard, salt, and cayenne pepper with a whisk. Once combined, add the sliced bacon and toss until the bacon is well-coated.
Lay the bacon slices side-by-side onto the wire rack, careful not to overlap any slices. Bake in the preheated oven for about 20 minutes, then flip the bacon slices over. Bake an additional 10 to 20 minutes, until the bacon has reached the desired crispness.* Check for doneness often to prevent the sugar from burning.
Once the bacon is almost crisp, remove the bacon from the oven and let it rest on the wire rack for about 5 minutes, then transfer to parchment paper using tongs. The bacon will continue to harden as it cools.