Add-ins such as nuts and fruit should be tossed with the dry
ingredients before the wet ingredients are added. Coating the pieces with flour
prevents them from sinking to the bottom of the muffins.
To adapt a regular muffin recipe for mini-muffin tins, simply bake the mini
muffins less. Mini muffins bake in 15 to 20 minutes, while regular muffins bake
in 20 to 30 minutes.
Muffins are done when the top springs back when gently touched with a finger.