2 tablespoons unsalted butter, cut into 1/2-inch cubes and chilled
1 tablespoon heavy cream
1 pinch of salt
Procedure:
Cook the curd
Heat the passion fruit juice in nonreactive saucepan over medium heat until hot but
not boiling.
In the bowl of a standing mix, beat the eggs and yolk; gradually whisk in sugar.
Slowly pour hot passion fruit juice into eggs.
Pour the beaten eggs with juice into the still warm saucepan.
Cook over medium heat, stirring constantly with wooden spoon, until mixture
registers 170 degrees on instant-read thermometer and is thick enough to cling to
spoon, about 3 minutes.
Add the cold ingredients and strain
Remove pan from heat and stir in cold butter until incorporated.
Stir in cream and salt.
Pour curd through fine-mesh strainer into a nonreactive bowl.
Cover surface of curd directly with plastic wrap; refrigerate until needed.