The Ruby uses simply Citron Vodka and fresh ruby red grapefruit juice whereas I used grapefruit vodka and a little lime juice with the grapefruit juice for this recipe. This makes the Pink Grapefruit Martini kind of a grapefruit version of the classic SATC cocktail, the Cosmopolitan.
I have fallen in love with this sassy and refreshing martini and I think that the girls would love this cocktail as well. It has a sophistication and flair that anyone would love. I think Mr. Big might even like this one.