I am in LOVE with this! My mom gave me this recipe sometime last month, I love it. It's reallllll good. And you can add your very own toppings that McD's doesn't have!
First of all, start off by crushing a chocolate bar beforehand. Like a Kit Kat or maybe some M&M's, everything is delish.
Mix the 2 cups ice cream with the 1/4 cup of milk, you will get a nice creamy texture much much much thicker then milk and slightly thinner the the ice cream.
Sprinkle the crushed chocolate bar onto the ice cream mixture, mix, then spoon them into bowls, VOILA! This is delicious, I tried it.