01 - Preheat the oven to 400°F (200°C).
02 - Slice each chicken breast horizontally to yield 6 evenly portioned fillets.
03 - In a mixing bowl, whisk together the maple syrup, Dijon mustard, soy sauce, olive oil, smoked paprika, black pepper, and salt until well combined.
04 - Submerge the chicken fillets in the marinade and let them rest for 10 minutes at room temperature.
05 - Set a skillet over medium heat and cook the bacon slices until crisp on both sides. Transfer to a plate lined with paper towels to drain.
06 - Remove the chicken from the marinade, reserving the liquid. Grill or pan-sear each fillet for 3 to 4 minutes per side until fully cooked through. Set aside.
07 - Pour the reserved marinade into the same skillet. Simmer for 2 to 3 minutes until it thickens slightly, then brush the reduced glaze generously over each cooked chicken fillet.
08 - If desired, lay a slice of cheddar on each glazed chicken fillet and broil for about 1 minute until the cheese is melted and bubbly.
09 - Lightly brush the cut sides of each slider bun with butter. Toast in a skillet over medium heat until golden brown.
10 - Spread a thin layer of mayonnaise on each bottom bun. Layer with arugula, a glazed chicken fillet, a strip of bacon, sliced red onion, and the top bun. Serve immediately.