01 - Set oven temperature to 350°F for baking sliders.
02 - Combine shredded chicken, hot sauce, melted butter, and garlic powder in a mixing bowl. Toss thoroughly until all chicken pieces are evenly coated with sauce mixture.
03 - Slice slider buns horizontally through the center. Arrange bottom halves on a baking sheet, spacing them evenly for uniform heating.
04 - Distribute buffalo chicken mixture generously onto each bun bottom. Place half a slice of cheddar cheese on top of the chicken portion.
05 - Transfer baking sheet to preheated oven. Bake for 5 to 7 minutes until cheese is completely melted and sliders are heated throughout.
06 - Remove sliders from oven. Layer shredded lettuce, sliced red onion, and celery over the melted cheese. Drizzle ranch dressing evenly across all sliders and sprinkle with chopped chives.
07 - Place top bun halves over dressed sliders. Serve immediately while warm and cheese remains melted.