The twin pack of pastries ... of the toaster pastries in four flavors: strawberry, blueberry, brown sugar cinnamon, and apple currant. The name - Pop-Tarts - was a pun on Andy Warhol's pop ...
You can get the blueberry along with frosted strawberry and cherry in a variety pack at some stores. This is a nice way to get a little bit of variety in your Pop-Tart lineup with just one purchase.