Add the espresso, ice, 2 tablespoons chocolate syrup, half and half and vanilla syrup to a blender. Pulse a few times to break up the ice, and then process until smooth.
Pour into a glass and top with the whipped cream and remaining ½ tablespoon chocolate syrup.
Serve immediately.
Notes
How to make Vanilla Syrup: Begin by making a thick simple syrup. Add 1 cup of sugar and 1 cup of water to a saucepan. Heat to boiling, stir until sugar dissolves. Let the sugar syrup cool completely. Then add 1 tablespoon vanilla extract to the cooled sugar syrup to create vanilla syrup. This can be used to make your Mocha Frappuccino, and other coffee drinks. This recipe for vanilla syrup will allow you to make about 10 beverages. Just store it in the refrigerator, and it will keep for up to one month.
ALTERNATELY, you can buy vanilla syrup in your market's coffee section.