Buffalo Chicken Sliders Recipe

Ingredients

• 2 tsp. onion powder
• 2 tsp. granulated garlic
• 1 tsp. celery salt
• 3 lb. boneless, skinless chicken thighs
• 2 lb. boneless, skinless chicken breasts
• 2 Tbsp. olive oil
• 1 cup diced onions
• ½ cup diced carrot
• ½ cup diced celery
• 1 Tbsp. unsalted butter
• ½ cup low-sodium chicken broth
• 1 cup hot sauce (such as Frank's), divided
• 4 Tbsp. unsalted butter
• Salt
• black pepper
• 40 cocktail buns, halved
• ½ cup mayonnaise
• ½ cup sour cream
• ½ cup crumbled blue cheese
• 1 tsp. white wine vinegar
• 1 tsp. Worcestershire sauce
• 1 tsp. Dijon mustard
• 6 cups thinly sliced celery
• ¼ cup chopped fresh parsley