01 - Preheat oven to 350°F.
02 - Combine shredded chicken, buffalo sauce, cream cheese, and ranch dressing in a medium bowl. Mix until creamy and thoroughly incorporated.
03 - Line a baking sheet or 9x13-inch dish with parchment paper. Place bottom halves of slider buns tightly together on the prepared pan.
04 - Spread buffalo chicken mixture evenly across all bottom buns.
05 - Sprinkle mozzarella and cheddar cheeses uniformly over the chicken layer. Add crumbled blue cheese and sliced jalapeños if desired.
06 - Place top bun halves over the cheese. Whisk together melted butter and garlic powder, then brush generously over bun tops.
07 - Cover loosely with aluminum foil and bake for 15 minutes.
08 - Remove foil and continue baking for 8–10 minutes until cheese melts completely and bun tops turn golden brown.
09 - Remove from oven, sprinkle with fresh chives, and let rest 5 minutes. Pull apart individual sliders to serve.