Cupcakes are nice when done, if you already have them fact, you know it's not easy.
Between the filling of the molds (or boxes) badly dosed, or the dough that has fallen on the sides, we often end up with misshapen cupcakes, too small or too big.
To make clean and easy baking, consider using what you might have in your kitchen...
For example, an ice cream scoop ! We often have one somewhere, or in the family.
It allows you to easily scrape the dough, to measure perfectly , and pour the dough back into the boxes in a very practical way (just like you would drop the scoop of ice cream).
No more hassle, and I guarantee you a clean result.