Step 1

In a small pan, heat vegetable oil over medium-high heat.

Step 2

Add garlic and lemongrass to the pan. Sauté until fragrant, about 15 seconds.

Step 3

Add fermented fish sauce, crushed pineapples, sugar, lemon or lime juice, and red chili peppers. Adjust the amount of sugar gradually, depending on the sweetness of the pineapples. Stir to combine.

Step 4

Bring the mixture to a boil, then turn off the heat. Serve warm as a flavorful dipping sauce or accompaniment.