WINONA, Minn. – An electric smoker spewed heavy white smoke from the kitchen into the restaurant and bar at Nosh Scratch Kitchen at 102 Walnut Street. Firefighters found white haze from an alley vent and went inside, unplugged the smoker, and carried it outside. There they squelched the flames with dry chemicals. This was about 8:30 a.m. The restaurant doesn’t open until 4. When chef Greg Jawarski arrived, he was encouraged to find an alternative and code-friendly way to smoke his $7.50 a plate Nashville hot chicken wings.