Make Frozen Butterbeer just like the Frozen Butterbeer in Harry Potter World at Universal Studios.
Start with one of the 2 liters of cream soda and freeze small portions of it in plastic cups. You can also use ice cube trays as well, whatever you have.
With a stand mixer or hand mixer whip the whipped cream. Add a few tablespoons of the butterscotch topping to flavor the whipped cream as you whip. Do not over whip the cream. It should look and feel light, not thick and heavy. Set the whipped cream aside.
You'll need a good blender for this recipe, a blender that can blend ice well. I'm in love with our Blendtec Blender, it's the best blender.