Nachos are a perfect snack for parties or the big game. If you try to melt cheese all by itself, however, you'll end up with an oily, greasy mess. You can get the flavour of your favourite cheese, and the silky smooth texture of the processed stuff, with the help of a little chemistry.

Nachos are one of the world's most perfect foods, but some attention must be paid to format. To ensure every single bite is just as cheesy and delicious as the first, you have to know how to stack them.