How does marron-flavored buttercream icing taste?

Marron-flavored buttercream icing is flavored with chestnuts, which gives it a unique and nutty taste profile. This flavor comes from the marron, a specific variety of chestnut that is typically sweet and has a rich, buttery consistency when processed. When incorporated into buttercream icing, it retains its distinctive chestnut flavor, which can be described as sweet and slightly earthy, setting it apart from more common flavors like vanilla or chocolate. The richness and depth of chestnut flavor make marron-flavored buttercream a delightful option for desserts, particularly in French patisserie, where such flavors are celebrated for their complexity.