Rocky Road Ice Cream ingredients 1 cup half-and-half 1 cup heavy cream 1 can sweetend condensed milk 1/4 cup hershy syrup 1 cup mini marshmallows 1/4 cup mixed nuts directions Combine all ingredients in a mixing bowl, except for the marshmallows and chopped nuts. Transfer ingredients carefully into the ice cream maker. Add marshmallows and chopped nuts to mixture after 30-45 min to prevent ingredients from settling to the bottom or jamming the spatula.