01 - Combine maple syrup, bourbon, Dijon mustard, apple cider vinegar, minced garlic, smoked paprika, salt, and black pepper in a small mixing bowl; whisk until smooth.
02 - Place chicken thighs in a resealable bag or shallow dish. Pour half the marinade over the chicken, reserving the rest. Refrigerate and marinate for at least 20 minutes, or up to 2 hours for enhanced flavor.
03 - Heat 2 tablespoons olive oil in a large skillet over medium heat. Add diced sweet potatoes, stirring occasionally for 5 minutes.
04 - Add red bell pepper, green bell pepper, diced red onion, thyme, salt, and black pepper. Cook, stirring frequently, until sweet potatoes are tender and golden, about 10 to 12 minutes. Transfer hash to a plate and keep warm.
05 - Wipe skillet clean and add remaining 2 tablespoons olive oil. Remove chicken from marinade, discarding used marinade. Sear thighs over medium-high heat for 3 to 4 minutes on each side until golden brown.
06 - Reduce heat to medium. Add reserved marinade to the skillet with chicken. Cook, turning occasionally, until chicken is fully cooked and coated in glaze, 8 to 10 minutes. If the glaze thickens excessively, add a splash of water.
07 - Arrange sweet potato hash on plates. Top with glazed chicken thighs and garnish with chopped fresh parsley.