A fresh curry paste is a mixture of aromatics — chilli, shallot, garlic, and a few hard rhizomes — ground together until they release their oils. The paste is the flavour engine of the curry; make it fresh and the dish builds itself. Pound it by hand if you can, blend if you must.
The Core Ingredients
A tropical curry paste comes down to a small set of aromatics, each doing a specific job:
| Ingredient | Role |
|---|---|
| Dried chilli (soaked) | Heat and colour |
| Shallot | Sweet, deep base |
| Garlic | Pungent backbone |
| Galangal | Sharp, piney, peppery lift |
| Lemongrass | Bright citrus freshness |
| Turmeric (fresh or ground) | Earthy depth and golden colour |
| Kaffir lime zest or leaves | Floral citrus perfume |
| Salt | Seasons and helps grind the paste |
Optional but traditional: a little roasted shrimp paste or dried shrimp for umami, and roasted coriander or cumin seeds for warmth.
Ginger is not a substitute for galangal. They're different rhizomes with different flavours — ginger is warming and sweet, galangal is sharp and piney. Use galangal if the recipe calls for it.
Prep: Get Everything Small Before You Grind
Aromatic rhizomes are hard and fibrous. Prep is what makes the difference between a smooth paste and a gritty one.
- Soak dried chillies in warm water for 15–20 minutes until soft, then drain and roughly chop.
- Peel the shallots and garlic. Slice the shallots thinly.
- Scrub and peel the galangal and turmeric. Galangal is woodier than ginger — chop it small; a knife handles it better than a grater.
- Trim the lemongrass to its tender lower 10–15 cm. Peel off the tough outer layers, then slice the inner core into very thin rounds — the coarse, fibrous upper stalk will never break down.
- Tear or slice kaffir lime leaves, discarding the tough central vein, or zest the lime.
The rule: everything goes in small and even so the paste grinds to a uniform texture.
Grind It: Mortar vs. Blender
Mortar and Pestle (Best)
- Start with the hardest, driest ingredients — lemongrass, galangal, turmeric, and any whole spices. Pound until a rough paste forms.
- Add the softer aromatics — shallot, garlic, chilli, salt — and keep pounding.
- Work until the paste is a smooth, shiny mash that releases its oil. This takes 10–20 minutes of steady pounding. Pounding bruises the aromatics and helps release their oils; a blender is faster and can produce a similarly flavourful result.
Blender / Food Processor (Faster)
- Use the smallest jar you have, or the paste will climb the sides and blend unevenly.
- Add the chopped, hardest ingredients first with a splash of water or oil so the blades catch.
- Pulse, scraping down the sides frequently, until smooth. Expect a texture that may be slightly lighter than a hand-pounded paste.
Handling the Heat
If your paste includes a hot chilli like cobra chilli or another ultra-hot variety, treat it with respect.
- Wear gloves while handling and de-seeding. Capsaicin lingers and will burn skin and eyes long after you've washed with water.
- Keep the seeds for more heat, remove them for less. The heat lives in the seeds and the pale membranes.
- If you overheat the paste, dilute the finished dish carefully with a small amount of coconut milk or sauce; water may thin the texture.
- Wash tools thoroughly before anything touches a face or eye.
Store It
- Fresh paste keeps in an airtight jar in the fridge for about a week, with a thin layer of oil poured over the top to preserve colour and flavour.
- Freeze in portions. Spoon the paste into ice-cube trays, freeze, then bag the cubes. Each cube is roughly a tablespoon — grab as many as your curry needs straight from frozen.
Quick Reference
| Step | Why it matters |
|---|---|
| Chop everything small and even | Uniform grind, no gritty fibres |
| Hardest ingredients first | They need the most pounding time |
| Choose a mortar or blender | Pounding bruises the aromatics; blending is faster |
| Wear gloves for hot chillies | Capsaicin burns and lingers |
| Freeze in cube portions | Weeknight-ready flavour |
Fresh paste is most fragrant the day it's made and within the first few days after — which is exactly why making it yourself, in batches, beats anything from a jar.