Essential Spice Gourmet Truffle Powder stems from Natural Sliced Black Truffles and a dab of WhiteÂ Truffle Oil to sustain freshness. Truffles are actually a fungus, (Mushroom) species from the Tuber genus to be exact. Truffles are the fruiting body from certain species of subterranean fungi. Normally found near the roots of certain trees, truffles rely on fungivores (animals that eat fungi) to spread their spore Truffles are highly regarded in Croatian, French, Georgian, Greek, Italian, Middle Eastern and Spanish cooking. Some may describe the taste of black truffles as a mixture of chocolaty, nutty and earthy and others may describe it as having a subtle woody flavor mixed with a slight mushroom taste.