To celebrate National Caramel Day on April 5, Starbucks is reintroducing one of its past drinks. The Caramel Cocoa Cluster Frappuccino is returning to the coffee chain on Tuesday, but for a very limited time, Starbucks announced in a press release. It will once again be removed from the menu on April 11, after just six days. The blended beverage was first introduced at Starbucks last summer as part of a contest, the “Frappuccino Flav-Off,” as a way to celebrate the Frappuccino’s 20th anniversary.