Question: how are cupcakes and muffins difference?
Answer: Cupcakes are often iced or frosted, whereas muffins tend to have no topping, or a simple crumb topping. Cupcakes usually have a head or top no larger than the body of the cupcake; muffins are often encouraged to overflow their baking cup, so that their top is larger in diameter, giving them somewhat of a mushroom shape.