00:00 Grilled cheese can be made with mayonnaise instead of butter for a crispier result, but it is recommended to use regular mayonnaise instead of cupy mayonnaise.

02:36 The grilled cheese sandwich has been around for a long time and has been mentioned in ancient Roman texts, but it really took off thanks to sliced bread.

05:13 Grilled cheese sandwiches became popular during the Great Depression with open-faced varieties, but it wasn't until the 1950s and 60s, with the availability of sliced bread and pre-sliced packaged cheese, that they really took off in America.

08:03 Grilled cheese sandwiches require heat to be considered grilled cheese, and recipes for melted cheese on bread date back to at least 1902.

10:53 In the late 30s, people started making grilled cheese sandwiches by putting butter on the bread and cooking it in a pan, and in 1953, Irma Rombauer suggested using a waffle iron to make grilled cheese. People began making grilled cheese sandwiches by putting butter or mayo on the bread and cooking it on the stove, and the amount of cheese used should not overwhelm the bread. The type and thickness of bread and the amount of cheese used depends on personal preference and the desired outcome.

13:26 In 2007, Kraft Foods spent $1.4 billion on a marketing campaign to get people to eat more grilled cheese and have it on restaurant menus, and as a result, many hipster comfort food restaurants now serve expensive grilled cheese sandwiches.

15:58 Kraft Foods launched a marketing campaign encouraging people to make videos about grilled cheese, resulting in a game designer named Chris Giannelloni winning 50,000 simoleons for his video about a grilled cheese sandwich going into a taining bed to get grilled.