Begin by slicing 2 of the candy bars into small pieces.
Add the ice cream, milk, caramel syrup, chocolate syrup, and chopped candy bars to a blender.
Start the blender on low and gradually increase the speed until well blended. If the milkshake is too thick you can add a bit more milk.
Drizzle caramel and chocolate syrup on the inside of two tall glasses. Pour the milkshake into the glasses.
Top the milkshakes with whipped cream and drizzle with chocolate and caramel syrup. Sprinkle chopped peanuts on top and then top with half of the remaining snickers bar.
The thickness of the milkshake will change depending on the firmness of the ice cream. Softer ice cream will result in a thinner shake.How much milk you need to add will also depend on the power of your blender. High-speed blenders will require less liquid than some lower-powered appliances.