Craterellus cornucopioides, or horn of plenty, is an edible mushroom found in North America and Eurasia.

The fruiting body is shaped like a funnel expanded at the top, the stalk seamless with the cap, which is 0.5–7 centimetres (1⁄4–2+3⁄4 inches) in diameter.

Craterellus cornucopioides has a smooth spore-bearing surface, but the rare, distantly related Cantharellus cinereus has rudimentary gills.

The forms Craterellus fallax (with a different spore colour en masse) and C. konradii (with a yellowish fruiting body) have been defined as separate species, but DNA studies now show that the latter should be considered part of C. cornucopioides.

[12] It mainly grows under beech, oak or other broad-leaved trees, especially in moss in moist spots on heavy calcareous soil.

[6][4] According to a Portuguese study, 100 grams of dried C. cornucopioides contain 69.45 g of protein, 13.44 g of carbohydrates (mostly mannitol, a sugar alcohol) and 4.88 g of fat, amounting to 378 calories.