Step 1 In a small sauce pot, mix together the coconut milk and one-half cup sugar. Stir in the pandan leaves and salt and bring to a boil over high heat, keeping the pandan submerged in the milk as the leaves cook and soften. When the milk has come to a boil, remove from heat and let the mixture steep for 10 minutes.
Step 2 Remove the pandan leaves from the milk, squeezing any excess liquid from the leaves into the milk. Discard the leaves.
Step 3In a medium stainless steel mixing bowl, whisk together the eggs, yolks and remaining one-half cup sugar. Whisk in the coconut milk mixture to form a custard base.
Step 4Place the stainless steel bowl over a medium pot of lightly simmering water. Gently cook the custard, stirring constantly with a rubber spatula, until the mixture thickens, 15 to 20 minutes. The final texture should have a thick custard consistency (a trail of the spatula should remain on the surface of the custard for more than 10 seconds).
Step 5Immediately remove from heat and strain into a medium bowl set over a larger bowl of ice water. Stir until the custard cools, then cover and refrigerate until needed. This makes about 2 cups coconut jam, more than is needed for the remainder of the recipe; the jam will keep for 1 week, refrigerated.