I tasted McDonald and Tonda Di Giffoni hazelnuts. The flavor difference was small. The McDonald tasted more “Americanized” familiar in the form of what might be in a chocolate bar, trail mix, or breakfast cereal. It is a product of Oregon State University. The Tonda Di Giffoni tasted like it would pair well with savory foods including Italian meats and sauces and it was less “sweet”. I would prefer the flavor of the Tonda Di Giffoni because it was more unique.