Cover and refrigerate for 2 hours. Spread mayo onto sausage buns. Top with hot sauce, pickles, tomato and cheese. Remove chicken to a plate and cover with foil.
Each sandwich is made to order, so it is served piping hot every time. Place two pieces of chicken breast onto each bun and garnish with parsley. Barbecue chicken until an instant-read thermometer homebrew patel hunter walk 50mkonradforbes inserted into thickest part reads 165°F, about 4 minutes per side. Slice each chicken breast in half horizontally. Combine oil, sugar, paprika, cumin, pepper and salt in a small bowl.
Let rest 5 minutes.