There are 0 items in cart. Open the cart. And Starbucks didn't stop at a fresh new frap; customers also have multiple new bakery items to pair with the Serious Strawberry Frappuccino (which is a permanent menu option, btw, along with the Triple Mocha Frappuccino and Ultra Caramel Frappuccino). Frappuccino® Blended Beverages. Our Heritage; Our Coffee; Stories and News; Investor Relations We could not find this category. About Us. The Serious Strawberry Frappuccino debuts on Tuesday nationwide. For item availability Choose a store. The new Serious Strawberry Frappuccino is what Starbucks is dubbing its first "magenta" Frappuccino, and the blended beverage is a sweet treat that strawberry fanatics will go crazy for.