This is a duck confit burger: slow-cooked duck legs crisped up and stacked on a brioche bun with a hoisin-sesame aioli and a quick cucumber slaw. It takes about 3.5 hours start to finish, most of which is hands-off oven time. If you want a burger that genuinely tastes different from anything you can order at a restaurant, this is a good reason to clear a Sunday afternoon.
The short version of why this works
Two things make this recipe succeed or fail. First, the five-spice salt rub needs time — at least a few hours on the duck before it goes into the fat, ideally overnight. Without that contact time, the spice stays on the surface and the meat underneath tastes plain. Second, after the long slow cook, the duck must be dried thoroughly and seared in a very hot, dry pan. Wet duck legs dropped into a lukewarm pan will steam instead of crisp, and you’ll lose the textural contrast that makes the whole burger worth the effort. Pat the skin completely dry with paper towels and get the pan smoking before the duck goes in.
Common problems and fixes
- The bun collapses under the weight of the duck. Brioche is soft, and confit duck is heavy and a little greasy. Toast the cut sides of the bun in the same pan you used to sear the duck — the residual fat helps and the extra structure from toasting keeps the bun from turning to mush halfway through eating.
- The cucumber slaw makes the bun soggy. Salt the julienned cucumber for 10 minutes and squeeze out the liquid before dressing it. Skip this step and the slaw will water down the aioli and soak through the bun within minutes of assembly.
- The hoisin aioli tastes flat. Hoisin varies a lot by brand — some are much saltier or sweeter than others. Taste the finished aioli before you spread it. A few drops of rice vinegar will sharpen it if it tastes too sweet; a small pinch of salt fixes a flat, one-dimensional version.
- The duck skin crisps unevenly. Press the duck leg flat against the pan with a spatula for the first 60 seconds of searing. Confit legs often have an irregular shape and the skin won’t make full contact otherwise, leaving soft patches.
- The meat shreds too much when you pull it off the bone. That’s actually fine — pulled confit piled onto the bun works just as well as a whole leg. Skip the egg in the mix if you’re tempted to bind it into a patty; it makes the texture gummy and you lose the rustic quality that’s the whole point.
Make-ahead notes
Duck confit is one of the best things you can make ahead. Once the legs have finished cooking, leave them submerged in their cooking fat, cover the dish tightly, and refrigerate for up to 5 days — the flavor actually improves after a day or two. For longer storage, pack the legs and fat into a freezer-safe container and freeze for up to 3 months; thaw overnight in the fridge before use. The hoisin aioli keeps in a sealed jar in the fridge for up to 4 days. Make the cucumber slaw fresh on the day you’re serving — it goes limp quickly and doesn’t hold well. When you’re ready to eat, pull the duck legs from the fat, let them come to room temperature for about 20 minutes, then sear as directed. Everything else comes together in under 10 minutes once the duck is crisped.
Five-Spice Duck Confit Burger
Ingredients
Duck Confit
- 4 pieces duck legs bone-in, skin-on
- 2 tbsp kosher salt for curing
- 1 tbsp Chinese five-spice powder
- 4 cloves garlic smashed
- 4 sprigs thyme fresh
- 2 cups duck fat or more, enough to submerge duck
Hoisin Aioli
- ½ cup mayonnaise
- 2 tbsp hoisin sauce
- 1 tsp rice vinegar
- 1 tsp sesame oil
Burger Components
- 4 medium brioche burger buns lightly toasted
- 1 cup cucumber julienned
- ¼ cup scallions thinly sliced
- 1 tbsp rice vinegar for slaw
- 1 tsp sesame seeds
Instructions
- Cure the Duck: Rub the duck legs with salt and Chinese five-spice powder. Place in a dish, scatter garlic and thyme over the top, cover, and refrigerate for 12-24 hours.
- Cook the Duck Confit: Preheat the oven to 135°C (275°F). Rinse the duck legs, pat dry, and submerge in melted duck fat in a baking dish. Cook for 2.5 to 3 hours, until the meat easily pulls away from the bone.
- Prepare Hoisin Aioli: Mix mayonnaise, hoisin sauce, rice vinegar, and sesame oil in a bowl until smooth. Set aside.
- Assemble the Slaw: Toss cucumbers, scallions, and rice vinegar together. Sprinkle with sesame seeds and set aside.
- Crisp the Duck: Heat a pan over medium heat. Take the confit duck meat off the bone, shred it, and sear in a dry pan until crispy and golden brown, about 5 minutes.
- Assemble the Burgers: Spread hoisin aioli on the toasted brioche buns, add crispy duck confit, and top with the cucumber slaw. Serve immediately.
Notes
- For a time-saving approach, use pre-made duck confit and simply reheat in a skillet for crispiness.
- To elevate further, add pickled red onions or a fried egg.
Nutrition
Frequently asked questions
Can I use store-bought duck confit instead of making it from scratch?
Yes, and it’s a completely reasonable shortcut. Look for it in the specialty or charcuterie section of well-stocked grocery stores or order it online — just pat it dry and sear it the same way the recipe describes, since the crisping step is what matters most for the burger.
What temperature should the duck reach, and can I check with a regular meat thermometer?
Because duck legs are cooked confit-style — low and slow in fat — the internal temperature will exceed 165°F (74°C) long before they’re done; you’re cooking to tenderness, not just a safe temperature. A standard instant-read thermometer works fine, but the real test is whether the meat pulls easily away from the bone with a fork.
I can’t find duck legs at my regular grocery store — what should I do?
Ask at the meat counter, since duck is often available by request even when it’s not on display. Asian grocery stores and specialty butchers are reliable sources; if all else fails, whole duck legs are widely available online and ship frozen.
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