How to Make the Perfect Grilled Cheese Sandwich

Long before grilled cheese sandwiches were a trend and mobile trucks were selling them from L.A. to New Haven, we all knew they were the ultimate rainy-day comfort food, a baby boomer's answer to the madeleine. Here are the general principles, adapted from Grilled Cheese, Please!50 Scrumptiously Cheesy Recipes, by Laura Werlin

1）Gratethecheese.lt will melt more evenly and will more likely reach the desired consistency before the bread burns.
 2) Use the proper bread-to-cheese ratio: %-inch-thick slices of bread, roughly 4 by 5 inches, with i>2to 2 ounces of grated cheese per sandwich, depending on the recipe.
3) Melt the butter and spread it on the bread, not the pan.
4) Cook in a nonstick pan.
5) Use a spatula to flatten the sandwich slightly as it's grilling.
6) Go low and slow: Figure 18 to 20 minutes total cookingtime on medium-low heat for a golden-brown outside and a gooey inside.