The main ingredients in traditional American Rocky Road are:
walnuts or almonds
The most popular version of Rocky Road in the U.S. is in ice cream form, which consists of chocolate ice cream, marshmallows (or sometimes a “marshmallow swirl”), and nuts. Although not as popular, slabs of Rocky Road can also be found at confectioner’s shops. The Annabelle Candy Company manufactures a candy bar called Rocky Road that has marshmallow, a thin covering of chocolate, and cashews.