Pretzel Bun Burgers with Emmental and Sautéed Onions
Why this recipe works
- Layered savoury flavour: Golden onions, nutty Emmental and sharp German mustard give the burger more depth than a standard cheese topping.
- Chewy, toasted bun: Warming the pretzel bread in the pan adds light browning while keeping its distinctive soft, chewy structure.
- Fast weeknight cooking: The onions, patties and buns are cooked in the same pan, keeping the process efficient and ready in under 30 minutes.
Get the most out of this recipe
Texture tips
- Keep the patties tender: Handle the minced beef lightly when shaping and avoid pressing the burgers down as they cook, which can force out the juices.
- Build a better sear: Let the patties brown properly on the first side before turning; moving them too early can weaken the crust.
- Toast the pretzel buns: Briefly toasting the cut sides helps the buns hold up against the mustard, melted cheese and onions.
Ingredient notes
- Choose sturdy pretzel bread: Pretzel buns or rolls with a firm crust and soft centre work best, as they can hold the burger without becoming too soft.
- Use a good melting cheese: Emmental melts smoothly and brings a mild nuttiness; Gruyere gives a richer, slightly deeper flavour if preferred.
- Adjust the mustard finish: German mustard gives a sharper edge, while Bavarian sweet mustard creates a softer, sweeter balance.
Make-ahead tips
- Store components apart: Keep cooked burgers and onions separate from the pretzel bread so the buns stay fresher and easier to rewarm.
- Reheat before assembling: Warm the burgers and onions in a frying pan over a medium heat until piping hot, then assemble with freshly warmed buns and mustard.
- Best served straight away: The burger is at its best while the cheese is melted, the onions are warm and the pretzel bun is lightly toasted.
Equipment you'll need
Ingredients
Instructions
- Halve and thinly slice the onion. Heat 1 tbsp sunflower oil in a frying pan over a medium heat, add the onion and a pinch of the salt, then cook for 8 to 10 minutes until soft and golden. Tip onto a plate and keep warm.
- Put the minced beef in a bowl and season with the remaining salt and the black pepper. Shape into 2 patties, slightly wider than the buns, and press a shallow dimple in the centre of each. Wipe out the pan if needed, then heat the remaining 1 tbsp sunflower oil over a medium-high heat.
- Cook the burgers for 3 to 4 minutes on the first side until well browned, then flip and cook for 2 to 4 minutes more, until cooked to your liking. Lay the Emmental on top, cover the pan with a lid and let it melt for 1 to 2 minutes. Transfer the burgers to a plate to rest briefly.
- Split the pretzel bread and toast the cut sides in the same pan for 30 to 60 seconds until warm and lightly browned. Spread the bases with German mustard, top with the cheesy burgers and the sautéed onions, then close with the tops. Serve straight away while the buns are warm.
Recipe notes
Tips
- For the juiciest burgers, handle the minced beef lightly and avoid pressing the patties down in the pan.
- If you like a deeper onion flavour, cook the onions a few minutes longer over a lower heat until more deeply golden, stirring often.
Substitutions
- Replace Emmental cheese with Gruyere cheese for a slightly nuttier, richer melt.
- Replace German mustard with Bavarian sweet mustard for a milder, sweeter finish.
Storage
- Refrigerate up to 2 days
- Store cooked burgers and onions separately from the pretzel bread in airtight containers. Reheat the burgers and onions in a frying pan over a medium heat until piping hot, then assemble with fresh-warmed buns and mustard.
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Recipe overview
- Servings: 2 servings
- Total time: 25min (25min active)
- Difficulty: Easy
- Cuisine: German
-
Allergens:
Gluten Milk Wheat
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