Tricks to mask the burnt flour taste
Salt. 
Salt masks bitter flavors. However, (and unfortunately), the burnt flavor is not something easily masked. It's a typical flavor you might find in grilled meats, but not so much in breads and fried items. 

You could also mask the burnt flour taste by refrying. Scrape off the burnt bits if you can. Change your oil, and refry the chicken. It's the best bet for eliminating that burnt flavor.