A patty melt is a type of sandwich

Sandwich

A sandwich is a food item, typically consisting of two or more slices of :bread with one or more fillings between them, or one slice of bread with a topping or toppings, commonly called an open sandwich. Sandwiches are a widely popular type of lunch food, typically taken to work or school, or...

 consisting of a hamburger patty

Patty

A patty is a flattened cake, often of meat.Patty may also refer to:* Patty , a family name* Patricia, a female given name, in all forms of English* Patrick , a male given name, in Australian English and Hiberno-English...

, pieces of sautéed or grilled onion

Onion

The onion , also known as the bulb onion, common onion and garden onion, is the most widely cultivated species of the genus Allium. The genus Allium also contains a number of other species variously referred to as onions and cultivated for food, such as the Japanese bunching onion The onion...

, and Cheddar

Cheddar cheese

Cheddar cheese is a relatively hard, yellow to off-white, and sometimes sharp-tasting cheese, produced in several countries around the world. It has its origins in the English village of Cheddar in Somerset....

 or Swiss cheese

Swiss cheese

Swiss cheese is a generic name in North America for several related varieties of cheese which resemble the Swiss Emmental. Some types of Swiss cheese have a distinctive appearance, as the blocks of the cheese are riddled with holes known as "eyes". Swiss cheese has a piquant, but not very sharp,...

 between two slices of bread

Bread

Bread is a staple food prepared by cooking a dough of flour and water and often additional ingredients. Doughs are usually baked, but in some cuisines breads are steamed , fried , or baked on an unoiled frying pan . It may be leavened or unleavened...

 (traditionally rye

Rye bread

Rye bread is a type of bread made with various percentages of flour from rye grain. It can be light or dark in color, depending on the type of flour used and the addition of coloring agents, and is typically denser than bread made from wheat flour...

, though sourdough

Sourdough

Sourdough is a dough containing a Lactobacillus culture, usually in symbiotic combination with yeasts. It is one of two principal means of biological leavening in bread baking, along with the use of cultivated forms of yeast . It is of particular importance in baking rye-based breads, where yeast...

 is sometimes substituted). The sandwich is then fried with butter on a frying pan so that the cheese melts thoroughly.

In the Pacific Northwest, a popular variant is ground salmon patty (instead of ground beef) and dill Havarti (in lieu of the more common Cheddar). In Belarus

Belarus

Belarus , officially the Republic of Belarus, is a landlocked country in Eastern Europe, bordered clockwise by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital is Minsk; other major cities include Brest, Grodno , Gomel ,...

 the addition of fish roe and chicken egg is common. In Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 it is at times served open face and with gravy

Gravy

Gravy is a sauce made often from the juices that run naturally from meat or vegetables during cooking. In North America the term can refer to a wider variety of sauces and gravy is often thicker than in Britain...

.

Other uses

Patty Melt is also a cartoon character and mascot costume used by state beef councils in the promotion of beef at public events. The character has made appearances at state fairs, NASCAR

NASCAR

The National Association for Stock Car Auto Racing is a family-owned and -operated business venture that sanctions and governs multiple auto racing sports events. It was founded by Bill France Sr. in 1947–48. As of 2009, the CEO for the company is Brian France, grandson of the late Bill France Sr...

 Races, children's events, and cook-off

Cook-off

A cook-off is a cooking competition where the contestants each prepare dishes for judging either by a select group of judges or by the general public...

s. The appearance of the Patty character is a large plush

Plush

Plush is a textile having a cut nap or pile the same as fustian or velvet.Originally the pile of plush consisted of mohair or worsted yarn, but now silk by itself or with a cotton backing is used for plush, the distinction from velvet being found in the longer and less dense pile of plush...

 cheeseburger

Cheeseburger

A cheeseburger is a hamburger with cheese that has been added to it. Traditionally, the cheese is placed on top of the patty, but the burger can include many variations in structure, ingredients, and composition...

 with a pink baseball hat

Baseball cap

A baseball cap is a type of soft cap with a rounded stiff brim. The front of the cap typically contains designs or logos of sports teams ,...

 and long blonde braids.