From heat-sensitive patterns to frosting that blooms before your eyes, these interactive cakes are full of surprises—and science.

Consider this the icing on the cake. But why did we start ... Serve it in slices, topped with whipped cream. Melt the butter and chocolate together in a double boiler. Remove from heat, and ...

They arrive at your table still warm from the oven, with icing melting down the sides like a sweet Alpine avalanche. The outer layer has that perfect slight crispness that gives way to the soft, ...