starbucks iced coffee recipes

Does anyone know a recipe for a yummy iced coffee drink, like the way starbucks makes it?
I tried to make one the other day, and it was too watered down. I just put milk and sugar in it, and ice.
OK Start by using:
2 teaspoons of an Instant Coffee (like Nescafe)
2 cups cold water
1 full can of sweetened condensed milk
1 full tray of ice cubes
Blend thoroughly until light brown and frothy. (serves 2)
I found a link to a similar recipe. Try ‘em both.
Good Luck!