The Muffin Funnel

I like to make muffins, but I hate the bits of batter that spill on the pan. They burn and make the oven smell bad, and they are hard to clean. Here I describe a novel use of a canning funnel to direct muffin batter into their cups without spillage.
A further application is for applying streusel or other dry topping to muffins.

A wide canning funnel fits exactly into a muffin cup. 

You can add batter, and even adjust the level afterwards. The funnel holds the paper muffin cup in place, even with a sticky batter.

A clean funnel can be used to add a dry topping (pecan streusel is shown here) or fruit.

We're done!