🧅 Patty Melt
Adaptable for: 🌾 Gluten-Free 🥑 Keto 🥛 Dairy-Free 🍃 Paleo
A patty melt is not a burger on a bun. It's a griddled patty, caramelized onions and Swiss pressed inside buttery rye and grilled like a grilled cheese — and that's exactly what makes it a diner icon.
The patty melt lives in the space between a cheeseburger and a grilled cheese, and it needs both techniques. First you make real caramelized onions — slow, patient, jammy-sweet, not the pale sautéed kind — because they are the soul of this sandwich. Then you griddle a thin, wide patty so it fits the bread edge to edge, and finally you build it inside rye with Swiss on both sides of the meat and grill the whole thing in butter until the bread is crisp and the cheese glues it together. Rye is traditional and its slight tang cuts the richness; Swiss melts silky and mild. Take your time on the onions and everything else is easy.
🧾 Patty Melt — Recipe Card
From I Love Hamburger — ilovehamburger.com
Ingredients
- 1.25 lb (570g) ground beef, 80/20 chuck
- 2 large yellow onions, thinly sliced
- 3 tbsp butter, plus more softened for the bread
- 8 slices rye bread
- 8 slices Swiss cheese
- 1 tbsp neutral oil
- Kosher salt and freshly ground black pepper
Instructions
- Caramelize the onions first: melt 2 tbsp butter with the oil in a skillet over medium-low, add the sliced onions and a pinch of salt, and cook, stirring occasionally, 20–25 minutes until deep golden-brown and jammy. Add a splash of water if they stick. Set aside.
- Divide the beef into 4 thin, wide, oblong patties sized to match your rye slices — thin so they cook fast and fit the bread. Season both sides with salt and pepper just before cooking.
- Wipe the skillet, raise the heat to medium-high, and sear the patties 2–3 minutes per side to a good crust and 160°F (71°C) internal. Set them aside.
- Build each melt: butter the outsides of two rye slices. On the unbuttered inside, layer Swiss, the patty, a generous pile of caramelized onions, another slice of Swiss, and the second rye slice, buttered side out.
- Wipe the skillet and set it over medium. Griddle each sandwich 3–4 minutes per side, pressing gently, until the rye is deep golden and crisp and the Swiss is fully melted.
- Cut in half on the diagonal and serve hot, while the cheese still pulls.
👨🍳 Tips for the best Patty Melt
- Don't rush the onions — 20+ minutes over medium-low is what turns them jammy and sweet. Pale, barely-softened onions make a flat patty melt.
- Make the patties thin and wide to match the bread; a tall patty makes a sandwich that won't grill evenly or stay together.
- Swiss on both sides of the patty acts as glue and melts silky and mild — it's the classic choice, though a sharp cheddar or American also works.
- Griddle over medium, not high — you want the cheese fully molten by the time the rye is crisp, not burnt bread over cold cheese.
🥗 Make it fit your diet
This patty melt adapts easily. Here's how to make it work for common specialty diets:
🌾 Gluten-Free
Use a certified gluten-free bun or wrap it in crisp lettuce. Double-check sauces and seasoning blends — soy sauce, some Worcestershire, and pre-mixed rubs can hide gluten.
🥑 Keto / Low-Carb
Go bun-less or lettuce-wrapped (a.k.a. protein-style), skip ketchup and BBQ sauce or use no-sugar-added versions, and pile on cheese, bacon, and avocado.
🥛 Dairy-Free
Skip the cheese or use a dairy-free alternative, cook in oil instead of butter, and stick to dairy-free sauces (most mayo, ketchup, and mustard are fine).
🍃 Paleo / Whole30
Wrap it in lettuce (no bun), skip the cheese, and use compliant sauces with no added sugar, soy, or dairy. For Whole30, make sure any bacon is sugar-free.
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Frequently asked questions
What is the difference between a patty melt and a cheeseburger?
A patty melt is built on griddled rye bread instead of a bun and is grilled like a grilled cheese, with caramelized onions and Swiss melted around a thin patty. A cheeseburger is served on a soft bun with fresh toppings. Different bread, different technique, different burger — see our Classic Cheeseburger for the bun version.
What temperature should the patty be cooked to?
Cook the ground beef to an internal 160°F (71°C), the same as any burger. Because the patties are thin they get there quickly — check with our Doneness & Temperature Guide.
What bread is best for a patty melt?
Rye is traditional — its slight tang cuts the richness of the beef, cheese, and onions. Sourdough is a good substitute if you don't have rye. Avoid soft sandwich bread, which won't crisp up the same way.