You cool muffins and cupcakes completely in the pan
THE RESULT: Soggy baked goods.
THE FIX: When left in the pan too long, the steam inside muffins or cupcakes can’t escape and they sit in the pan and sweat, which leaves you with a wet base. Instead, let them cool 5 minutes in the pan, and then transfer them to a wire rack. Cooling on a wire rack allows air to circulate around them, letting the steam escape and leaving you with muffins and cupcakes that have a delicious crumb.