# How to Cut Lemongrass: 4 Techniques for Every Recipe (Mince, Slice, Bruise, Julienne)

> Source: https://foodvietnamese.com/how-to-cut-lemongrass/
> Updated: 2026-08-13

How you cut lemongrass depends entirely on what you’re cooking. Mince it finely for marinades and dipping sauces where it needs to blend in smoothly, thin-slice or julienne it for stir-fries where texture matters, and simply bruise or crush whole stalks for broths and braises where it’s removed before serving. In every case, start by trimming the woody root end and tough outer layers to reach the pale, tender core — that preparation step matters more than which cut you choose. **Quick Facts****Usable part:** Bottom 5–6 inches, pale portion only **Always remove:** Root end, dry tops, and the tough outermost 1–2 layers **For marinades/sauces:** Mince finely **For stir-fries:** Thin slice or julienne **For broths/braises:** Bruise or crush whole, remove before serving

Lemongrass shows up across Vietnamese cooking in wildly different forms — barely-visible slivers in a marinade, whole crushed stalks simmering in a pot of broth, fine strands stirred through a stir-fry — and each of those forms starts with a different cutting technique, not just a different amount. Getting the prep right matters more here than with most herbs, since lemongrass’s fibrous structure makes the wrong cut genuinely difficult to eat.

## How to Prepare Lemongrass Before Cutting

Every technique starts the same way, regardless of the final cut:

**Trim the root end** — cut off about ½ inch from the base, where the stalk is toughest and driest.

**Cut off the dry, woody top**, leaving the bottom 5 to 6 inches, which is the only part worth using. The upper stalk is too fibrous to eat even when finely cut, though whole trimmed tops can still flavor a broth if bruised and strained out later.

**Peel away the tough outer layer or two**, similar to peeling the outer leaves off a leek. Underneath is a paler, smoother layer that’s significantly more tender than the exterior suggests.

Once trimmed and peeled, you’re left with the tender core — the part every technique below actually uses.

## The 4 Cutting Techniques, and When to Use Each

### 1. Mince (For Marinades and Dipping Sauces)

Slice the trimmed stalk into thin rounds first, then run a knife repeatedly over the rounds until finely minced, almost paste-like. This is the technique used in dishes like [lemongrass chili chicken](https://foodvietnamese.com/lemongrass-chili-chicken-recipe-ga-xao-sa-ot/), where the lemongrass needs to blend into a marinade rather than remain a distinct, chewable piece. A food processor works well for larger batches, pulsing until finely minced without turning fully to liquid.

### 2. Thin Slice or Julienne (For Stir-Fries)

Slice the stalk into very thin rounds (paper-thin, if possible) for a delicate texture that softens as it cooks, or cut into thin matchsticks (julienne) for a more visible, slightly chewier bite. This technique suits stir-fries and braises like [braised chicken with ginger and lemongrass](https://foodvietnamese.com/ga-kho-gung-recipe-braised-chicken-with-ginger/), where the lemongrass stays in the finished dish and contributes both flavor and texture.

### 3. Bruise and Crush Whole Stalks (For Broths and Simmered Dishes)

Rather than cutting at all, trim the stalk and use the back of a knife or a pestle to firmly crush or bruise it along its length — this ruptures the fibers enough to release the aromatic oils into a simmering liquid without needing to chop it into pieces that would later need straining out individually. This is the standard approach for broths like [bún bò Huế](https://foodvietnamese.com/bun-bo-hue-recipe/), where whole bruised stalks simmer for flavor and are removed before serving.

### 4. Cut Into Segments (For Braises and Stews)

For dishes like [bò kho](https://foodvietnamese.com/bo-kho-recipe-vietnamese-beef-stew/), lemongrass is often cut into 2–3 inch segments and lightly bruised or split lengthwise, rather than fully crushed or minced. This gives a middle ground — more surface area exposed than a whole bruised stalk, but still large enough pieces to easily pick out before serving, since braised lemongrass segments remain too fibrous to eat even after a long simmer.

## Common Mistakes When Cutting Lemongrass

| Mistake | Result | Fix |
| --- | --- | --- |
| Skipping the outer layer peel | Stringy, fibrous texture even when minced | Always peel 1–2 tough outer layers before cutting |
| Using the upper stalk instead of the base | Woody, unpleasant texture regardless of cut | Use only the bottom 5–6 inches, pale portion |
| Mincing too coarsely for a marinade | Chewy, unpleasant bites in an otherwise smooth sauce | Slice into rounds first, then mince finely, almost to a paste |
| Cutting against a dull knife | Crushed, bruised cuts instead of clean slices | Use a sharp knife — lemongrass’s fibrous structure resists a dull blade |

> I watched a home cook in Huế prepare lemongrass for bún bò by smashing whole stalks against her cutting board with the flat of a cleaver — three or four firm hits, no cutting at all — before dropping them straight into the pot. When I asked why not slice it, she said slicing it for a broth just gives you more pieces to fish out later for the same amount of flavor released. That logic stuck with me: the cut should match the dish’s actual need, not just habit.
> 
> Kelly Thuy — field notes, Huế

## Frequently Asked Questions

**What part of lemongrass do you use?**Only the bottom 5 to 6 inches of the stalk, after trimming the root end and peeling away the tough outer layer or two. The upper stalk is too woody and fibrous to eat, even finely cut.

**How do you prepare lemongrass for cooking?**Trim the root end, cut off the dry top, and peel away the tough outer layers to reach the pale, tender core. From there, mince, slice, or bruise it depending on the recipe — marinades call for fine mincing, stir-fries call for thin slicing, and broths call for bruising whole stalks.

**Do you remove lemongrass before serving?**When it’s bruised whole or cut into large segments for a broth or braise, yes — it’s too fibrous to eat even after long cooking and should be removed before serving. When it’s finely minced into a marinade or thinly sliced into a stir-fry, it’s meant to be eaten as part of the dish.

**Can you freeze lemongrass?**Yes — trimmed and peeled lemongrass freezes well, whole or pre-sliced, for up to several months. Freezing it pre-minced in small portions makes it easy to add directly to marinades without thawing first.