Blend the ice cream and milk together in a blender.
Crumble the pretzels into the blender
Add 2 tablespoons of caramel sauce.
Pulse the blender a few times to incorporate the pretzels and caramel sauce. Do not overmix and crush the pretzels too much. You want them just mixed in and still in chunks.
Pour the mixture into a glass.
Drizzle the remaining 1 tablespoon of caramel sauce on top.