Mushroom Jerky

Stir vinegar, soy sauce, oil, brown sugar, paprika, mustard and garlic powder together in a 9-by-13-inch baking dish. Add sliced mushrooms and stir to coat well. Cover and refrigerate for 8 hours or overnight.

Preheat oven to 250 degrees F. Line 2 large baking sheets with parchment paper and set a wire rack on each of the baking sheets.

Divide the mushrooms between the prepared racks, arranging them in a single layer, making sure not to overlap. Roast, rotating the pans halfway through, until the mushrooms are dried and shrunken, about 1 1/2 hours. They should have a chewy texture with crisp edges. Remove from oven and let cool completely.