Marinade Chicken: In a bowl, add in the buttermilk, pickle juice, egg, hot sauce, paprika, baking soda, and salt. Mix well then submerge the chicken thighs into the mixture. cover and fridgerate for 2 hours or best overnight.
Coleslaw: In a bowl, add in all the ingredients for the coleslaw, minus the cabbage, mix well to make the dressing. Add in the cabbage and toss for the dressing to be evenly coated. Set aside
Spicy mayo: In a bowl, add in all the ingredients for the sauce and mix well to combine. Set aside.
Dry Breading: In a bowl, add in all the ingredients for the dry breading mixture. Mix well to combine.
Breading the chicken: Take your marinaded chicken out of the fridge. With a spoon, pick up some of the marinade and drip droplets into the dry breading mixture to create some texture for the chicken when we bread. Lift up 1 fillet at a time and allow the excess batter to drip off. Dip the fillet into the dry breading mixture and allow the fillet to be evenly coated by the flour mixture. Make sure to press the flour into every nook and cranny. Repeat with the other fillets then set them aside for 10 minutes.
Frying the chicken: Bring a pot of neutral oil (i.e. vegetable or canola oil) to 175-190C or 350-375F. Carefully and slowly drop in 1 fillet at a time and fry for roughly 7-8 minutes, flipping halfway through. Drain on a paper towel to cool slightly.
Assemble: Place some spicy mayo on the bottom bun, followed by the fried chicken, 4 pieces of pickles, slaw and lastly the top bun. Enjoy!