01 -
In a bowl, mix buttermilk and Cajun seasoning. Add chicken breasts, ensuring full coverage. Cover and refrigerate for at least 1 hour.
02 -
Combine all-purpose flour, paprika, garlic powder, onion powder, salt, and black pepper in a separate shallow bowl.
03 -
Pour vegetable oil into a deep skillet to a depth of approximately 1 inch and heat over medium-high to 350°F.
04 -
Remove marinated chicken from buttermilk, letting excess drip off, then dredge thoroughly in the flour mixture until fully coated.
05 -
Carefully place coated chicken breasts into hot oil and fry for 5 to 7 minutes per side, or until golden and internal temperature reaches 165°F.
06 -
Transfer fried chicken to a plate lined with paper towels and allow to rest for a few minutes.
07 -
In a small bowl, mix mayonnaise, minced garlic, lemon juice, salt, and black pepper until well blended.
08 -
Spread garlic aioli on the bottom half of each brioche bun. Add romaine lettuce, a tomato slice, and the crispy chicken breast. Close with the top bun and serve immediately.