It's National Grilled Cheese Sandwich Day! Although it only requires three ingredients (bread, cheese, and butter), grilled cheese is one of the most popular comfort foods in the world. Send a free eCard for National Grilled Cheese Day to spread the word about this holiday!

The Ancient Romans were the first civilization to make a cooked bread and cheese sandwich, but many cultures have invented their own take on this ancient dish. In France, people enjoy Croque Monsieur (a grilled ham and cheese sandwich) while in Switzerland it is customary to melt the cheese and toast the bread separately before combining them. The classic American grilled cheese sandwich emerged in the 1920s when inexpensive cheese and affordable sliced bread became available. It is now a staple in cafés, diners, and school cafeterias across the country.

To celebrate National Grilled Cheese Sandwich Day, enjoy a grilled cheese sandwich cooked your favorite way and served with a side of tomato soup!