Thanks to @CandyLindTX, @CrackerJax, @KetoSnaps. I can’t take credit for brining the chicken in pickle juice I found the directions from this recipe: https://lowcarbinspirations.com/chickfila-copycat-chaffle-sandwich-recipe/
and I use the spicy mayo from this recipe: https://gimmedelicious.com/popeyes-chicken-sandwich/
Is it ok to share links in here? The flavor that the pickles added to the sandwich was delicious. The coating could have been crunchier, but the flavor was great.