A box grater can be used in place of a food processor (if needed) to shred the cheese.
The aluminum foil can be used to cover the sandwiches as the cook on the second side.
Feel free to switch up the cheese on these if you like, but if you're using a dryer cheese (such as the aged cheddar) then I still recommend combining it with the brie and wine, which will act like a binder.
Depending on the size of your skillet, you may be able to cook more or less sandwiches at a time. Make sure not to over crowd the skillet to leave ample room for flipping.
Adapted from From America's Test Kitchen