The base formula for Jamba Juice’s seasonal smoothie consists of 2% milk, a couple scoops of sweetened frozen yogurt, and ice. The final addition is a scoop of a secret blend containing all the great flavor that makes this smoothie taste like you’re drinking pumpkin pie.

Real canned pumpkin puree, plus sugar, spices, and a little food coloring will bring your smoothie to life with the taste and appearance of the limited-time-only smoothie that you can now make any time you want.

Frozen vanilla yogurt is not as easy to find in the freezer section as it was 10 years ago, so reduced-fat ice cream and regular vanilla yogurt will substitute nicely here.

Think of all the famous drinks you can make at home? Click here to see if I hacked your favorites. 

With over 150 locations in 24 states, Jamba Juice is one of the top smoothie chains in the country. And yes, these smoothies are big, so rustle up a 24-ounce cup, or get ready to share. Here are the Jamba Juice copycat smoothie recipe clones for six of the favorites from Jamba Juice's big list of fruity smoothies: Banana Berry, Orange-A-Peel (photo), Citrus Squeeze, Cranberry Craze, Peach Pleasure, and Strawberries Wild.

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