Making Thai Green Curry Paste from Scratch
This is not about convenience; it is about the sharp, citrus-forward heat that you can only get by crushing fresh ingredients. You are building a foundation of flavor that no jarred substitute can replicate.
Pound, don't puree
Using a mortar and pestle is non-negotiable for the proper texture; a food processor will heat the ingredients and turn them into a watery slurry rather than a cohesive paste.
- Heavy granite mortar and pestle
- Chef's knife
- Cutting board
What goes in.
- 20-25fresh green bird's eye chilies
- 1 tbspkosher salt
- 1/2 cupshallots, finely minced
- 1/4 cupgarlic, finely minced
- 3 tbspgalangal, finely minced
- 1/2 cuplemongrass, tough outer layers removed and white parts sliced thin
- 1 tbspkaffir lime zest, finely minced
- 1 tbspcilantro roots, cleaned and chopped
- 1 tsptoasted shrimp paste
- 1 tsptoasted coriander seeds, ground
- 1/2 tsptoasted cumin seeds, ground
Pounding in sequence
Always start with the ingredients that require the most force to break down—the chilies and salt—before moving to the fibrous roots. Add ingredients one at a time, ensuring each is fully incorporated into a paste before adding the next.
The method.
Pound the base
Add the green chilies and salt to the mortar. Pound until the chilies are broken down into a fine, green pulp.
Add the aromatics
Incorporate the lemongrass, galangal, and kaffir lime zest. Pound with a steady, firm motion until the fibers are completely pulverized.
Introduce the pungent elements
Add the shallots, garlic, and cilantro roots. Continue to pound until the mixture turns into a consistent, thick, bright green paste.
Final seasoning
Stir in the shrimp paste, coriander, and cumin. Use the pestle to fold them in until the mixture is uniform.
Other turns to take.
Vegetarian
Replace the shrimp paste with an equal amount of fermented soybean paste or double the salt and add a splash of light soy sauce.
When it doesn't go to plan.
Freeze the kaffir lime leaves if you have extra; they slice thinner and cleaner when slightly firm.
If the paste feels too dry, add a teaspoon of coconut milk to loosen it during the final stage.
Store in an airtight jar in the refrigerator for up to one week or freeze in ice cube trays for individual portions.
The ones that keep coming up.
Why use cilantro roots instead of the leaves?
Cilantro roots provide a much deeper, earthier aroma that is essential for authentic Thai pastes, which the leaves cannot provide.
Can I use ginger if I can't find galangal?
You can, but the flavor will be significantly brighter and sharper. Galangal is woody and pine-like, which is necessary for the balance of the dish.
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