How Many Shamrock Shakes Do You Have To Drink Before You Pee Green?

This is almost as philosophical a question as "how many licks does it take to get in the center of a tootsi-roll pop?"

Unfortunately, I don't know the answer to either question, but I do know that if for some reason you're super motivated to make McDonald's Shamrock Shake, instead of buying it, here's the recipe:

McDonald's Shamrock Shake Copycat Recipe

(makes 1 giant shake, or 2 generously sized shakes)

Ingredients:

3 cups good quality vanilla ice cream

1 3/4 cups 1% milk

1/2 teaspoon peppermint extract

Green food coloring, if desired

But is anyone actually that motivated?

VIA Yahoo.com