Step 1

Heat the oil in saucepan over medium-high heat. Add the curry paste and cook for about 2 minutes, stirring occasionally.  Next add the sugar, coconut milk, peanut butter, and fish sauce and stir to mix. Bring to a boil and then reduce the heat to medium and simmer for about 5 minutes, until the sauce thickens.

Step 2

Remove from the heat and squeeze in the lime juice. Stir to incorporate.

Step 3

Serve garnished with cilantro.