Prepare a baking dish or tray by lining it with parchment paper or greasing it lightly with butter or oil.
In a microwave-safe bowl or using a double boiler, melt the dark chocolate and milk chocolate together until smooth and fully melted. Stir occasionally to ensure even melting.
Once the chocolate is melted, remove it from the heat and let it cool slightly.
Add the mini marshmallows and chopped nuts to the melted chocolate. Stir well to ensure that all the ingredients are coated evenly.
Pour the mixture into the prepared baking dish or tray. Use a spatula or the back of a spoon to spread it out evenly.
Place the tray in the refrigerator for at least 2 hours, or until the Rocky Road is set and firm.
Once the Rocky Road is set, remove it from the refrigerator and cut it into small squares or bars.
Serve and enjoy! Rocky Road is best stored in an airtight container in the refrigerator to keep it fresh.
Feel free to customize your Rocky Road by adding additional ingredients such as dried fruits, cookies, or even a sprinkle of sea salt for an extra touch of flavor. Enjoy this sweet and indulgent treat!