This easy Vietnamese-inspired bún bowl pairs lemongrass chicken with rice vermicelli, crunchy vegetables, fresh herbs, and a tangy fish-sauce dressing. It brings the fresh, savory-sweet balance found in many Vietnamese noodle bowls to a manageable weeknight recipe, with ingredients you can find at most grocery stores.
Ingredients
- 1½ lb (680 g) boneless, skinless chicken thighs
- 2 stalks lemongrass, tender inner parts only, finely minced (about 30 g); or use the substitution in Tips
- 2 tbsp (30 ml) fish sauce, divided between the chicken and dressing
- 1 tbsp (15 ml) soy sauce
- 1 tbsp (12 g) granulated sugar, for the chicken
- 2 garlic cloves, finely minced (about 6 g), divided between the chicken and dressing
- 1 tbsp (15 ml) neutral oil, such as canola or avocado oil
- ½ tsp (1 g) freshly ground black pepper
- 8 oz (225 g) dried rice vermicelli noodles
- ⅓ cup (80 ml) warm water, for the dressing
- 3 tbsp (45 ml) fresh lime juice, from about 2 limes
- 2 tbsp (25 g) granulated sugar, for the dressing
- 1 small Thai bird’s-eye chili, thinly sliced, or ¼ tsp (1 g) red pepper flakes (optional)
- 4 cups (120 g) thinly sliced lettuce
- 1 medium cucumber, about 7 oz (200 g), halved lengthwise and thinly sliced
- 1 medium carrot, about 3½ oz (100 g), peeled and cut into thin matchsticks
- 1 cup (25 g) loosely packed mint leaves
- 1 cup (20 g) loosely packed cilantro leaves and tender stems
- 2 green onions, about 1 oz (30 g), thinly sliced
- ¼ cup (35 g) roasted peanuts, roughly chopped (optional)
Instructions
- Mix the dressing, about 3 minutes. In a small bowl, stir the warm water and 2 tbsp (25 g) sugar until the sugar dissolves. Add the lime juice, 1 tbsp (15 ml) fish sauce, the remaining minced garlic, and the sliced chili, if using. Taste: it should be bright, lightly sweet, and savory. Set it aside while you prepare the other ingredients. The flavor will mellow slightly as it sits.
- Season the chicken, about 7 minutes. Trim any large pieces of excess fat from the thighs and slice the meat into strips about 1 inch (2.5 cm) wide. In a bowl, combine the minced lemongrass, soy sauce, 1 tbsp (15 ml) fish sauce, 1 tbsp (12 g) sugar, 1 minced garlic clove, oil, and black pepper. Add the chicken and turn the pieces until coated. Wash your hands and any surface that touched raw chicken before moving on.
- Prepare the vegetables and herbs, about 10 minutes. Slice the lettuce, cucumber, carrot, and green onions. Pick the mint leaves from any tough stems, and roughly separate the cilantro leaves and tender stems. Keep the vegetables and herbs in separate piles so each bowl can be assembled neatly. If you prefer softer carrot, toss it with a spoonful of the dressing and let it sit while you cook.
- Cook the noodles, about 6 minutes. Bring a large pot of water to a boil and cook the rice vermicelli according to its package directions; many thin varieties take about 3 to 5 minutes. Check early so the noodles stay tender rather than mushy. Drain them in a colander and rinse briefly under cool water to stop the cooking and remove excess starch. Shake off the water well.
- Cook the chicken, about 12 minutes. Heat a large skillet over medium-high heat. Add the chicken in a single layer, working in batches if needed so the pieces brown rather than steam. Cook for about 4 to 6 minutes per side, turning as needed, until browned and cooked through. Check the thickest pieces with a food thermometer: the USDA FSIS safe minimum internal temperature for poultry is 165°F (74°C). Transfer the cooked chicken to a clean plate; do not reuse the plate or utensils that held it raw.
- Build the bowls and serve. Divide the noodles among four bowls. Add lettuce, cucumber, carrot, mint, cilantro, and green onion, then top with the hot chicken. Spoon dressing over each bowl to taste and finish with peanuts, if using. Serve extra dressing at the table so everyone can adjust the balance.
Tips
- Choose lemongrass carefully. The outer stalks are tough, so peel them away and mince only the pale, tender center very finely. If fresh lemongrass is unavailable, use 1 tsp (2 g) finely grated lemon zest plus 1 tsp (2 g) finely grated ginger. This is a practical stand-in, not an exact match: it gives a citrusy, warm aroma but lacks lemongrass’s distinctive floral, grassy flavor. Frozen minced lemongrass is another convenient option; follow the package guidance for replacing fresh.
- Adjust the dressing gradually. Fish sauces differ in saltiness, and limes vary in acidity. Start with the listed amounts, taste, then add a little more lime for sharpness, sugar for roundness, or fish sauce for savory depth. Don’t pour all the dressing over the noodles at once; serving it at the table helps keep the vegetables crisp and prevents the bowl from becoming too salty.
- Avoid crowding the pan. Chicken releases moisture as it cooks. If the pieces are packed tightly together, they can simmer in their juices instead of browning. Use two batches if necessary, and let the pan heat again briefly between batches. Finely minced lemongrass can catch on the skillet, so keep the heat at medium-high rather than turning it to maximum.
- Make the components ahead, not the assembled bowls. The dressing can be mixed earlier in the day, and the vegetables can be sliced a few hours ahead and refrigerated. Keep herbs dry and add them just before serving. Fully assembled noodles absorb dressing and soften, so build the bowls at mealtime for the best texture.
Serving Suggestions
Serve the bowls with the dressing on the side, especially if people prefer different levels of acidity or heat. A small dish of extra lime wedges lets each person brighten the bowl at the table. For a more substantial meal, add a side of steamed rice or another portion of rice noodles, though the recipe is designed to be filling as written. If serving family-style, put the noodles, chicken, vegetables, herbs, peanuts, and dressing in separate dishes and let everyone assemble a bowl.
The balance is part of what makes this style of Vietnamese noodle bowl appealing: warm, savory chicken meets cool vegetables, fragrant herbs, soft noodles, and a punchy dressing. You can serve the chicken freshly cooked and warm, or let it cool briefly before adding it to the bowls. Either way, keep the herbs and crunchy toppings separate until serving so they retain their texture.
Variations
For a different protein, replace the chicken with 1½ lb (680 g) pork tenderloin cut into thin strips. Cook it in batches and check that whole cuts of pork reach 145°F (63°C), followed by a 3-minute rest, using a food thermometer. Shrimp also works: use 1½ lb (680 g) peeled, deveined shrimp and cook until opaque and 145°F (63°C) internally. Since shrimp cook quickly, watch them closely and remove them from the skillet as soon as they reach temperature.
To make the bowl vegetarian, use 14 oz (400 g) extra-firm tofu, pressed and cut into cubes, and replace the fish sauce with a vegetarian mushroom seasoning sauce or soy sauce. The flavor will be less briny and complex than the fish-sauce version, so add lime and seasoning to taste. Brown the tofu in a lightly oiled skillet, turning it until several sides are golden; add the lemongrass mixture near the end so the garlic and sugar do not burn.
You can also vary the vegetables with thinly sliced radish, shredded cabbage, bean sprouts, or bell pepper. Use herbs that are easy to find: mint and cilantro are especially welcome, while Thai basil adds a more pronounced anise-like note. Vietnamese noodle bowls have many regional and household versions, so treat these additions as flexible choices rather than a fixed list. For a gluten-free bowl, use a certified gluten-free soy sauce or tamari and check the fish sauce and noodle labels.
Storage and Reheating
Refrigerate cooked chicken and any leftover noodles within 2 hours of cooking. Store the chicken, noodles, vegetables, herbs, and dressing in separate airtight containers when possible. Cooked chicken and noodles keep for 3 to 4 days in the refrigerator at 40°F (4°C) or colder; cut herbs and crisp vegetables are best within about 2 days. Discard vegetables that become slimy or develop an off smell, and do not leave assembled bowls at room temperature for extended serving.
Reheat chicken in a covered skillet over medium-low heat with a splash of water, or microwave it in short intervals, stirring or turning the pieces for even heating. USDA FSIS guidance is to reheat leftovers to 165°F (74°C); check the center of the chicken with a food thermometer. Rice vermicelli can be loosened with a little hot water and warmed separately, or briefly dipped in hot water if it has clumped. Add fresh herbs and dressing after reheating. Freezing is possible for the cooked chicken, though its texture may soften; freeze it in a sealed container for up to 2 months for best quality, then thaw in the refrigerator and reheat safely. Do not freeze the fresh vegetables, herbs, or assembled bowls.
Frequently Asked Questions
Can I make the chicken ahead?
Yes. Cook it, cool it promptly, and refrigerate it in a covered container within 2 hours. It keeps for 3 to 4 days refrigerated. Reheat only the amount you plan to serve, bringing it to 165°F (74°C), or serve it cold in a newly assembled bowl. Keep the noodles, vegetables, and herbs separate until serving so they do not turn soggy.
What is the best substitute for fish sauce?
For a vegetarian alternative, use mushroom seasoning sauce or soy sauce, starting with a little less and adjusting after tasting because salt levels vary. The dressing will taste more soy-forward and less savory-briny. Coconut aminos can also work, but they are usually sweeter and milder, so you may need extra lime and a small pinch of salt. For the closest traditional flavor, fish sauce is the better choice.
Do I need to marinate the chicken?
No. The thin strips pick up flavor from the lemongrass, fish sauce, garlic, and sugar while you prepare the vegetables. If you want to get ahead, you can coat the chicken and refrigerate it for up to 4 hours before cooking, but keep it covered and separate from ready-to-eat foods. Do not leave raw chicken at room temperature to marinate.
How do I keep rice vermicelli from sticking together?
Cook it only until tender, drain it thoroughly, and rinse briefly with cool water to remove excess surface starch. Shake the colander well, then portion the noodles into bowls or toss them with a small splash of neutral oil if they must wait. Follow the package timing because rice vermicelli thickness varies. Avoid leaving cooked noodles submerged in water, which can make them soft and waterlogged.
Can I make this recipe less spicy?
Yes. Leave out the Thai chili and red pepper flakes; neither is essential to the dressing. The fish sauce, lime, and sugar still provide the savory, tangy, lightly sweet balance. For a mixed group, serve sliced chili or chili flakes separately so each person can add heat to their own bowl.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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