Mix the chicken, panko, egg, salt and garlic powder gently and shape 8 small patties with damp hands.
Stir the cabbage, celery and blue cheese dressing together and chill the slaw.
Cook the patties in a lightly oiled nonstick skillet over medium heat for 4 to 5 minutes per side until their centers reach 165°F.
Melt the butter in a small saucepan and whisk in the hot sauce and Worcestershire sauce until emulsified.
Brush every cooked patty generously with the warm buffalo sauce.
Toast the slider buns cut-side down for 1 minute.
Place one buffalo chicken patty and 2 tablespoons celery slaw in each bun and serve 2 sliders per person.