does anyone know a good and reliable local source of black trumpet mushrooms and what a reasonable price might be? i need only enough to experiment with for a single recipe or two, and most of the websites that I found wanted to sell me a large amount. I would really prefer to go and buy them locally (Baltimore area) if possible.
I don't know any local stores that would carry these mushrooms, as they are not a very common variety. Though some are found on the East Coast, they primarily grow in the Pacific Northwest and Europe. I understand your dilemma about quantities. Although it is not the same, you can get smaller amounts if the trumpets are dried i.e - 1 ounce = 7.00 bucks or so and available online. You can reconstitute them before use. You may even find these dried shrooms at a local Asian Market.
East Coast Cafe
44 Calvert St, Annapolis, MD 21401
I got some dried black trumpets from a mushroom vendor at the Waverly farmer's market a few weeks for $5/oz. Never had them before, but they were delicious.