Heat the oil in a small pan to medium heat and add the dried shrimp paste. Cook the paste for 45 seconds to 1 minute, mashing it down completely, until it becomes vary fragrant. Cool and set aside.
Add the cooked shrimp paste to a mortar or a small food processor, along with the garlic, salt, sugar and bird's eye peppers. Grind or process until smooth.
Stir in the lime juice or lemon juice and use immediately.
