Hot answers tagged vegetables
A few that came immediately to mind: Blueberries Purple potatoes (sort of blue-violet) Blue corn (readily found in the form of corn chips) Lobsters are blueish (until cooked when they turn bright red, so nobody thinks of them as blue) Some edible flowers An excellent answer can be found at Skeptics.SE, complete with lots of pictures.
I really like Joe's answer. My preferred method for long term storage of any kind of pepper is to freeze it. But, in every case I can think of (that's a lot), the peppers benefit from being roasted and peeled before freezing. Thick walled peppers do well roasting in the oven or charred on the gas stove; then steaming loose the skins by putting the whole, ...
Even if limited to foods edible to humans, a few others do come to mind, each of which occasion in true blue hues (though not necessarily always). 1.the Concord grape 2.the juniper berry (used for making gin) 3.varieties of cabbage, squash, and mushroom (from which the band Blue Oyster Cult apparently derived its name)
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