Make sure you have everything ready because the recipe comes together very quickly!
Add one scoop of vanilla ice cream to the bottom of each of 4 large glasses. Drizzle the sides of the glasses with caramel syrup if you like. Set glasses aside.
Add 3 cups of ice to a large blender.
Pour the caramel ice cream topping over the ice, followed by the cream soda, butter flavored extract, and rum flavored extract.
Blend on high for about 30-60 seconds, or until the ice is finely crushed.
Evenly distribute the Butterbeer mixture among the 4 prepared glasses. Top each with another scoop of vanilla ice cream and drizzle more caramel syrup on top of the ice cream. Pop a straw or spoon into each glass and serve immediately.