Which Meiji snack shaped like little mushrooms was first sold in 1975?

Kinoko no yama was the Meiji snack shaped like little mushrooms that was first sold in 1975.

The name translates roughly as “mushroom mountain”: “kinoko” means mushroom and “yama” means mountain. Each piece has a chocolate cap and a biscuit-like stem, creating its distinctive mushroom silhouette. Meiji Seika developed it as a chocolate-and-biscuit snack for the Japanese market.

The snack is sometimes confused with Takenoko no sato, another Meiji product. Takenoko no sato has a bamboo-shoot shape, while Kinoko no yama has the mushroom form. The two products have become friendly rivals in Japan, with recurring promotional votes and “elections” comparing fan preferences.

Outside Japan, the product has also been sold in the United States under the name Chocorooms. Despite that export name, Kinoko no yama is the canonical Japanese name and the answer expected for this question.