A cake in a mug (more commonly known as a mug cake) is a variant that gained popularity on many Internet cooking forums and mailing lists. The technique uses a mug as its cooking vessel and can be done in a microwave oven. The recipe often takes fewer than five minutes to prepare. The cake rises by mixing vegetable oil (usually olive oil or sunflower oil) into a mixture of flour and other ingredients - as the oil in the mixture heats up, it creates air pockets in the mixture which allows the cake to quickly rise.
A cake in a jar is another way of making cupcakes. The baker uses a glass jar instead of muffin tins or cupcake liners. A butterfly cake is a variant of cupcake, also called fairy cake for its fairy-like "wings".[14] They can be made from any flavor of cake. The top of the fairy cake is cut off or carved out with a spoon, and cut in half. Then, butter cream, whipped cream or other sweet filling (e.g. jam) is spread into the hole. Finally, the two cut halves are stuck into the butter cream to resemble butterfly wings. The wings of the cake are often decorated using frosting to form various patterns. Elaborately frosted cupcakes may be made for special occasions such as baby showers, graduations, or holidays.[15] A cake ball is an individual portion of cake, round like a chocolate truffle, that is coated in chocolate.[16] These are typically formed from crumbled cake mixed with frosting, rather than being baked as a sphere. A gourmet cupcake is a somewhat recent variant of cupcake. Gourmet cupcakes are large and filled cupcakes, based around a variety of flavor themes, such as Tiramisu or Cappuccino. In recent years there has been an upcropping of stores that sell only gourmet cupcakes in metropolitan areas.[17] As an alternative to a plate of individual cakes, some bakers place standard cupcakes into a pattern and frost them to create a large design, such as a basket of flowers or a turtle.[18]
