How to Fill the Cupcake Tin?
In general, you may want to fill the cupcake tins about two-thirds to three-quarters of the way full. This will give you a very large, voluptuous cupcake.
I find that filling the wells is most easily accomplished by using a spring-loaded ice cream scoop.
After you bake a particular batter in your particular cupcake tins, make a note as to how high you filled them, and adjust for future batches if necessary.
These are exceptions to these guidelines for filling the tins. Brownie batter does not rise very much and does not develop a dome at all. So fill the brownie butter to cupcake tins almost to the level you want it after baking. Occasionally the brownie batter will sink a bit in the center after cooling. Simply fill with cupcake frosting, as desired.
On the other hand, when th...