No other dessert captivated Americans last year as much as the Cronut, a croissant-donut hybrid that New Yorkers reportedly line up at 4 a.m. to try. The Cronut has sparked imitations throughout the world. One of them includes the Cubic Doughnut, (¥120) available only in Circle K Sunkus convenience stores throughout Japan. They come in two flavors, chocolate crunch and strawberry milk chocolate — and while they are nowhere as crispy as a well-baked croissant, if you pop one in a toaster oven for a few seconds, you’ll find yourself with an unusual snack.