Can I add more Oreo topping to my Hershey’s McFlurry? September 26, 2022 08:50 Updated Yes Sir/Madam, additional Oreo toppings are available at 70 cents per serving. Related articles Are these new products available during breakfast hours? Are you still serving the vanilla soft serve? Can I add more Hot Fudge to my Hershey’s Sundae? Why is the McCafé Rewards Card discontinuing? I have a large order. Can I order online?