Diner-Style Patty Melt
Because they are not nearly as greasy as those from a diner, these homemade patty melts are quicker and easier to make.
Butter and oil are heated in a Dutch oven.
Add the onions, season with salt and pepper, and cook for 3 minutes while stirring constantly.
Allow onions to caramelize for about 20 minutes, covered with a lid and stirring occasionally to prevent burning.
In the meantime, thoroughly mix ground beef with garlic, salt, and pepper in a bowl.
Create four rectangular patties from ground beef.
In a skillet over medium-high heat, cook patties for 3 to 4 minutes on each side, flipping once.
Each patty should have a slice of Swiss cheese and an equal amount of caramelized onions on top.
Heat the oven’s broiler while positioning an oven rack about 6 inches from the heat source.