My own recipe. This is the first recipe I have ever posted that I came up with myself. Usually, I forget to write these things down, and then forget what I did.
3/4oz. Grey Goose Vanille
1/2oz. Club Soda
1 Med. Puréed/Juiced Fresh Prickly Pear
1 Teaspoon Organic Blue Agave Syrup
2 Dashes Dry Vermouth
As this is a martini, you should probably mix it in a shaker with ice and serve it straight up.