For the sauce combine all the ingredients together.
For the spiced flour mixture, combine all the ingredients together
Heat vegetable oil in a wok or medium pot until it reaches 180C.
Dip the chicken pieces into the buttermilk and then into the spiced flour mix, pressing the flour into the chicken so it looks shaggy. Shake excess off.
Fry the chicken until golden brown and crisp. Drain fried chicken on a tray lined with a rack.
Heat a pan over a medium heat. Warm tortillas on each side for a minute in a large flat pan and then keep warm in a clean tea towel until ready to serve.
To serve, drizzle sauce on to each tortilla. Top with lettuce, cheese and chicken.