Marinate fillet with garlic, peprika, white pepper,red chilli flakes, bbq sauce, hot sauce and chicken powder or salt.. for 3,4 hours.. put in refrigerator

In a bowl take all dry ingredients and mix well.. (flour, salt, chicken powder, red chilli, mustard, black pepper, garlic powder)

Now Take chicken fillet dip in dry flour.. press like this so you can get cracks

Then dip in water and again in dry..

Fry till golden in colour..
Show it's crisp..

Cut cucumber with potato slicer and put in ice chilled water..

Note:when I short of ice burg I use cucumber slices.. dip in water and drain at the time of assembling..

Note: you can toast your burger again after assembling in preheat oven for 3,4 min..