By RecipeLot

A grilled cheese sandwich is a simple hot sandwich filled with melted cheese. The key variable is the ratio of cheese to bread; this depends on the thickness and density of the bread, and the amount of cheese used, and varies according to taste; generally more cheese is preferred, so that the bread doesn't overwhelm the cheese. The goal is to get a nicely browned sandwich with melted cheese in the middle. Grated cheese is recommended for more even melting. If mixing the grated cheese with chopped onions or other ingredients, it is easiest to grate the cheese into a bowl, mix with additional ingredients, and then spoon onto sandwiches; otherwise it can be messy. Grilled cheese sandwiches are often served with soups, such as tomato soup.