My aunt gave me the secret to recreating her favorite late night order. It seems so simple but the flavor is completely out of this world. The combination of the greasy crunch and the gooey center is

This 5-ingredient patty melt is my aunt’s late-night diner order brought straight into a home kitchen. She swears the secret is cooking everything in the same pan so the bread soaks up all that buttery, beefy flavor, giving you a crunchy, greasy exterior and a gooey, melty center. It’s simple enough for a weeknight, but tastes like something you’d grab at a little roadside diner after a long day.

Serve these patty melts hot off the pan on a simple oval plate with a handful of potato chips, fries, or a small green salad. A dill pickle spear and a little dish of ketchup or your favorite dipping sauce on the side make it feel like a true diner meal. For a cozy family night, pair with tomato soup or a quick veggie tray so everyone can balance that rich, cheesy sandwich with something fresh and crunchy.

Servings: 4

1 1/2 pounds ground beef (80/20 for best flavor)

Shape the patties: Divide the ground beef into 4 equal portions. Gently shape each portion into a thin oval patty that’s about the same size and shape as your bread slices. Season both sides lightly with salt and pepper if you like, then set aside.

Cook the onions: In a large skillet over medium heat, add 2 tablespoons of the butter. When melted and sizzling, add the sliced onions and a pinch of salt. Cook, stirring often, for 12–15 minutes, until the onions are very soft, golden, and a little dark around the edges. If they start to brown too quickly, lower the heat. When done, push the onions to a plate and keep the skillet on the stove.

Cook the patties: In the same skillet (no need to wipe it out), increase the heat to medium-high. Add the beef patties and cook 3–4 minutes per side, or until nicely browned with crispy edges and cooked to your desired doneness. Transfer the cooked patties to a plate and turn the heat down to medium-low.

Butter the bread: While the patties rest, spread the remaining 4 tablespoons of softened butter evenly on one side of each bread slice. This is what gives you that greasy, golden crunch, so make sure you go all the way to the edges.