This is a grilled ground pork burger seasoned with fish sauce, lemongrass, garlic, and palm sugar, topped with fresh cucumber, julienned carrot, cilantro, and pickled radishes. The patty does most of the heavy lifting — the fish sauce and lemongrass give it a depth that plain pork burgers just don’t have. Total time is 40 minutes, and the result is a complete, well-balanced meal in your hand.
Substitutions that actually work
- Fish sauce: If you don’t have Red Boat or another high-quality brand, any fish sauce works — just taste before adding salt elsewhere. Soy sauce is a passable swap but loses the umami punch that makes the patty interesting.
- Palm sugar: Light brown sugar or white sugar both work in the same quantity. Palm sugar has a slightly more caramel-like flavor, but the difference in a patty this well-seasoned is minor.
- Lemongrass: Fresh is strongly preferred. If you only have lemongrass paste from a tube, use about 1 teaspoon — it’s more concentrated. Dried lemongrass doesn’t rehydrate well in a patty and can leave fibrous bits.
- Pickled radishes: Store-bought works fine. If you’re making your own, a quick 30-minute brine of rice vinegar, sugar, and salt gets you close enough. Thinly sliced pickled daikon is the most common version.
- Burger buns: A soft brioche bun holds up well to the juicy patty. A sturdier roll works too, but skip anything too crusty — it fights the toppings.
The short version of why this works
Two things matter here. First, the fish sauce acts as both seasoning and a moisture-retaining brine within the meat — it draws flavor into the pork and keeps the patty juicy even at the required 160°F (71°C) internal temperature. Second, the 10-minute rest after shaping isn’t just downtime; it lets the salt from the fish sauce start breaking down the proteins slightly, which helps the patty hold together on the grill without needing a binder. Skip the egg in the mix — it makes the patty mushy and dilutes the clean seasoning. Let the fish sauce do that job instead.
Troubleshooting
- Patties falling apart on the grill: The mixture was probably overworked or too warm. Mix just until combined, then refrigerate the shaped patties for 15 minutes before grilling if your kitchen is warm.
- Patty tastes flat or bland: Fish sauce brands vary a lot in salt and umami intensity. Taste a tiny cooked piece of the mixture before shaping all four patties — adjust with a little more fish sauce or a pinch of salt if needed.
- Lemongrass is chewy or stringy in the patty: Only the inner, pale-yellow part of the stalk should be used, and it needs to be minced very finely — almost paste-like. Outer layers are too fibrous to eat.
- Patty is dry by the time it hits 160°F: Ground pork with a higher fat content (around 20–25%) stays juicier. If your pork is very lean, a tablespoon of neutral oil worked into the mix before shaping helps.
- Toppings make the bun soggy fast: Assemble right before eating. If you’re serving a group, keep the toppings in separate bowls and let people build their own.
Leftovers and meal prep
Cooked patties keep in an airtight container in the fridge for up to 3 days. Reheat in a covered skillet over medium-low heat with a splash of water — about 3 to 4 minutes per side — to warm them through without drying them out. The microwave works in a pinch but tends to toughen the texture. Raw shaped patties can be frozen for up to 2 months; separate them with parchment paper and thaw overnight in the fridge before grilling. The pickled radishes actually improve after a day or two in the fridge, so making them ahead is worth it. Keep the fresh cucumber and cilantro separate until you’re ready to assemble.
Vietnamese Grilled Pork Patty Burger
Ingredients
Pork Patty Mixture
- 450 g ground pork preferably organic
- 3 tablespoons fish sauce high-quality, such as Red Boat
- 1 tablespoon garlic minced
- 1 tablespoon sugar preferably palm sugar
- 1 tablespoon lemongrass finely chopped
- 0.5 teaspoon ground black pepper freshly ground
Burger Assembly
- 4 pieces burger buns toasted
- 1 cup cucumber slices thinly sliced
- 1 cup carrot julienned
- 0.5 cup fresh cilantro leaves
- 0.5 cup pickled radishes
Instructions
- In a large bowl, combine the ground pork, fish sauce, minced garlic, palm sugar, lemongrass, and black pepper. Mix until well combined and the mixture is smooth.
- Divide the pork mixture into 4 equal portions and shape each into a patty, about 1-inch thick. Let them rest for 10 minutes to allow the flavors to develop.
- Preheat a grill or grill pan over medium-high heat (about 200°C / 400°F). Lightly oil the grill grates.
- Grill the patties for about 5-6 minutes on each side, or until the internal temperature reaches 70°C (160°F) and the patties are golden brown with a hint of char.
- Assemble the burgers by placing a grilled pork patty on the bottom half of each toasted bun. Top with cucumber slices, julienned carrots, a few cilantro leaves, and pickled radishes. Place the other half of the bun on top and press gently.
Notes
Nutrition
Common questions
Can I cook these patties on a stovetop instead of a grill?
Yes — a cast iron or heavy skillet over medium-high heat works well. Cook 5 to 6 minutes per side until the internal temperature reaches 160°F (71°C); you’ll get a good sear without the char marks, but the flavor is very close.
Do I really need to use fish sauce, or can I skip it?
Fish sauce is doing real work here — it seasons the pork deeply and adds savory depth that’s hard to replicate. You can substitute soy sauce in the same quantity, but the patty will taste noticeably milder and less complex.
How do I know when the patties are done without a thermometer?
Get a thermometer — ground pork must reach 160°F (71°C) and should never be served pink. A probe thermometer costs about $10 and removes all the guesswork, which matters with pork.
Can I make the patty mixture ahead of time?
Yes, and it actually helps — the flavors develop more fully after a few hours in the fridge. Mix and shape the patties, cover them tightly, and refrigerate for up to 24 hours before grilling.
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