Every year at this time the swarm descends upon my kitchen and bathrooms, even my office where a lot of my colleagues and I eat lunch at our desks. Gnats, fruit flies, call them what you will -- my colleague Mark prefers "flavor fairies" -- flit within my line of vision seeking something sour: drying towels, anyone?
Last fall my friend Diane Hooie, a bright, well-traveled and adventurous cook, told me how to trap 'em. This really works:
Pour a half inch of apple cider vinegar in a small glass and add two drops of dishwashing liquid. Mix well, sit it out and the flies will be drawn to the cup and gone forever.
I misremembered her instructions and added water to the glass. It doesn't seem to affect the potion's desirability as dozens of gnats have perished in a watery grave.