Check out the menu board at any Starbucks and you’ll find this frozen drink described as a blend of raspberry and other fruit juices plus Starbucks’ own Tazo brand tea. We’ve discovered that those other fruit juices include white grape juice, aroniaberry, cranberry, and blackberry. Since aroniaberry juice is next to impossible to track down in a local supermarket, we’ll have to make a taste-alike drink with a combination of just the other; more important flavors. Grab the raspberry syrup and a jar of seedless blackberry jam made by Knott’s Berry Farm, and brew up a little tea. Starbucks used Tazo black tea for the drink, but you can use the more common Lipton tea bags. You will only use 1/3 cup of the tea for this 1-serving recipe, so you’ll have plenty left over for additional servings, or for a quick iced tea fix.

Source: Top Secret Recipes: Sodas, Smoothies, Spirits & Shakes by Todd Wilbur.