Pound or blend into a paste. You can do this with a pestle and mortar or in a food chopper.Some people like a chunky sambal ijo, some like it smooth. So chop it to a coarse or fine paste, this is up to you.
Heat oil in a pan and sauté the paste until fragrant and lightly softened, for 5 minutes, adding the salt and sugar. If you want a deeper flavour, you could go 10 minutes.
Taste seasoning, then finish with lime juice for brightness and a citrus hit.
Allow to cool, then store in a clean, airtight jar in th efridge for a week. You could also top it with a layer of il and it will last 2 weeks.