Air Fryer Chicken Sandwich with Buttermilk Marinade
This copycat chicken sandwich delivers crispy, golden-brown chicken with a perfectly seasoned coating reminiscent of the famous fast-food version. The buttermilk marinade tenderizes the meat while adding tangy flavor, and the air fryer creates an incredibly crispy exterior without deep frying. Served on soft brioche buns with creamy mayo and tangy pickles, this sandwich is perfect for lunch or dinner when you're craving restaurant-quality fried chicken at home. The key is the overnight marinade and proper air fryer temperature to achieve that signature crunch.
Ingredients
- 2 chicken breast, boneless, skinless
- ½ cup buttermilkregular milk + 1 tbsp lemon juice1:1MediumFull guide →
- 1 large egg
- ½ cup all-purpose flourgluten-free flour blend1:1For gluten-free versiongluten-free
Medium
- ½ teaspoon baking powder
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon cayenne pepper
- ¼ teaspoon kosher salt
- ¼ teaspoon black pepper
- 2 brioche buns
- 2 teaspoons mayo
- 6 slices pickle
Instructions
- 1
Pound chicken breasts to even thickness
- 2
Combine buttermilk and egg in a bowl
- 3
Add chicken to buttermilk mixture ensuring full submersion
- 4
Cover and refrigerate for at least 2 hours or overnight
- 5
Mix flour, baking powder, garlic powder, onion powder, cayenne pepper, salt, and black pepper in shallow dish
- 6
Remove chicken from marinade allowing excess to drip off
- 7
Dredge chicken in flour mixture pressing gently to adhere breading
- 8
Preheat air fryer to 390 degrees F for 5-6 minutes
- 9
Place breaded chicken in preheated air fryer
- 10
Air fry for 6-8 minutes per side until golden brown and internal temperature reaches 165°F
- 11
Spread mayonnaise on both sides of brioche buns
- 12
Place fried chicken on bottom bun
- 13
Top with pickle slices and cover with top bun
- 14
Serve while chicken is warm and crispy
Tips
Marinate chicken overnight for maximum flavor and tenderness - the buttermilk breaks down proteins for juicy results.
Press breading firmly onto chicken to prevent coating from falling off during air frying.
Don't overcrowd the air fryer basket - cook in batches if needed for even browning.
Good to Know
Refrigerate assembled sandwiches up to 1 day. Store cooked chicken separately from buns for best texture up to 3 days.
Marinate chicken up to 24 hours ahead. Bread chicken up to 2 hours before cooking. Cook chicken same day for best crispiness.
Serve immediately while chicken is hot and crispy. Accompany with fries or coleslaw for complete meal.
Common Mistakes
Avoid skipping marinade time to prevent dry chicken
Don't overcook to avoid tough, dry meat - use thermometer
Avoid wet breading by letting excess marinade drip off completely
Substitutions
Gluten-Free Swaps
Medium
General Alternatives
FAQ
Can I use chicken thighs instead of breasts?
Yes, boneless skinless thighs work great and stay more moist. Adjust cooking time to 8-10 minutes per side depending on thickness.
What if I don't have an air fryer?
Bake at 425°F for 15-20 minutes per side, or pan-fry in oil heated to 350°F for 4-5 minutes per side.
How long does the cooked chicken keep?
Refrigerate cooked chicken up to 3 days. Reheat in air fryer at 350°F for 2-3 minutes to restore crispiness.