Go Back
+ servings
Spicy Buttermilk Fried Chicken Sandwich
Print Recipe
5 from 10 votes

Spicy Buttermilk Fried Chicken Sandwich

Crispy, juicy, tender pieces of chicken wrapped in buttery brioche buns - made to perfection in the comfort of your home! Tenderized overnight in a flavorful marinade and topped with Sriracha mayo, this buttermilk fried chicken sandwich will blow you away with its scrumptious burst of flavor and melt-in-your-mouth texture.
Prep Time10 mins
Cook Time10 mins
Total Time20 mins
Course: Dinner, Lunch
Cuisine: American
Keyword: best chicken burger recipe, best chicken sandwich, best fried chicken sandwich, buttermilk chicken, buttermilk chicken burger, buttermilk chicken sandwich, buttermilk fried chicken, buttermilk fried chicken sandwich, chicken thigh sandwich, crispy buttermilk chicken, crispy chicken burger, crispy chicken burger recipe, fried chicken burger, fried chicken burger recipe, fried chicken sandwich, fried chicken sandwich recipe, kfc chicken sandwich, popeyes chicken sandwich, popeyes fried chicken sandwich, spicy chicken burger, spicy fried chicken, zinger burger
Servings: 4 sandwiches
Calories: 582kcal


Buttermilk Marinade

  • 4 pieces boneless skinless chicken thighs pounded to even thickness
  • 1 cup buttermilk
  • 2 tbsp Sriracha or your favorite hot sauce
  • 1 tsp each salt, pepper, garlic powder

Flour Mixture

  • 1 cup all-purpose flour
  • 3 tbsp cornstarch
  • 1 tbsp paprika powder
  • 1 tsp each salt, pepper, garlic powder, cayenne powder add more cayenne for extra spice

Sriracha Mayo

  • 1/2 cup mayonnaise
  • 2 tbsp Sriracha

To assemble

  • cooking oil for frying
  • 4 brioche buns lightly toasted with butter
  • lettuce, tomato, pickles sliced


  • In a medium bowl, combine buttermilk, Sriracha, salt, pepper, and garlic powder. Add chicken thighs and marinate overnight, or at least for 4 hours.
  • Prepare the flour mixture by whisking together flour, cornstarch, paprika, salt, pepper, garlic powder, and cayenne powder in a shallow bowl.
  • Add 2 tbsp of the marinade into the mixture and mix through with a fork. Working with one piece at a time, dredge the chicken with the flour mixture, making sure it is completely coated.
  • In a small bowl, prepare the sauce by mixing together Sriracha and mayonnaise.
  • Heat the oil in a deep pan until it reaches 350˚F (180˚C). Fry the chicken for about 3-4 minutes on each side, or until cooked through and golden brown. The thickest part of the chicken should register 165˚F (75˚C).
  • Generously spread the Sriracha mayo on the toasted brioche buns, and top with sliced pickles, lettuce, and tomato. Serve immediately and enjoy!


To make homemade buttermilk: combine a cup of milk with 1-2 tablespoons of white vinegar or lemon juice. Stir these ingredients together and set aside for 10-15 minutes and the milk will slightly curdle and be ready to be used in the recipe!
Visual instructions can be found in the video above (please disable AdBlock if you are on your computer!). 
Details on ingredient substitutions and helpful tips are outlined in the above sub-sections. Happy cooking!
♥ Did you make this recipe?
Please rate the recipe with the 5 stars above to share your experience! Don't forget to tag @cookerru on Instagram, and hashtag it #cookerru. I love seeing your creations! x


Calories: 582kcal