Directions
<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Preheat your oven to 180°C. Begin by preparing the crust. In a food processor, pulse the graham crackers until they form fine crumbs. Transfer to a bowl and mix with melted butter, sugar, and salt until the mixture resembles wet sand. The butter acts as the binding agent, while sugar helps create caramelization during baking.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Press the crumb mixture firmly into a 23cm pie dish, creating an even layer on the bottom and up the sides. Use the bottom of a measuring cup to compact the crust—this prevents a crumbly crust later. Bake for 10 minutes until lightly golden and fragrant. The brief baking sets the crust and enhances its nutty flavor. Cool completely on a wire rack.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>For the custard filling, whisk together sugar, cornstarch, and salt in a medium saucepan. Gradually whisk in the milk and cream until smooth, ensuring no lumps remain. This gradual incorporation prevents cornstarch from clumping, which would create an unpleasant texture.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Place the saucepan over medium heat and cook, whisking constantly, until the mixture thickens and begins to bubble, about 5-7 minutes. It should coat the back of a spoon when ready. The continuous whisking is crucial to prevent scorching and ensure even cooking.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>In a separate bowl, whisk the egg yolks. Gradually add about 240ml of the hot mixture to the yolks while whisking constantly. This tempers the eggs, gradually warming them without scrambling. Return this egg mixture to the saucepan and cook for another 2 minutes, whisking constantly until very thick.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Remove from heat and immediately stir in the vanilla extract, rum, and butter pieces until completely melted and incorporated. The butter enriches the custard and gives it a silky mouthfeel, while the alcohol in the rum helps to enhance the other flavors.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Pour the custard through a fine-mesh sieve into a clean bowl to remove any lumps or bits of cooked egg. This extra step ensures your filling will be perfectly smooth. Press plastic wrap directly onto the surface of the custard to prevent a skin from forming and refrigerate for 30 minutes until slightly cooled but still pourable.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Pour the cooled (but still warm) custard into the prepared crust. Smooth the top with an offset spatula. Cover loosely with plastic wrap and refrigerate for at least 4 hours, preferably overnight, until completely set. Patience is key here—proper chilling time allows the flavors to meld and the filling to set properly.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>For the whipped cream topping, chill your mixing bowl and beaters in the freezer for 15 minutes—cold equipment creates more stable whipped cream. Using an electric mixer, whip the cold heavy cream on medium speed until soft peaks begin to form. Add the powdered sugar, vanilla, and optional rum (for extra flavor), then continue whipping until firm peaks form, but be careful not to overwhip.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Spread or pipe the whipped cream over the chilled pie, creating decorative peaks if desired. Grate fresh nutmeg lightly over the top for an aromatic finish that complements the rum beautifully. Refrigerate until ready to serve. The pie is best enjoyed within 2 days, though the crust may soften slightly over time due to the moisture in the filling.</li></ol>