Peter's Rum Pie

Peter’s rum pie is the kind of old-school icebox dessert that earns its keep with technique, not gimmicks. The base is a proper stovetop pastry cream, milk and sugar brought to a boil, then tempered with a flour-cornstarch slurry and egg yolks so it thickens into something glossy and spoon-coating without breaking.

The rum and butter go in off the heat at the end, which is the move that matters. Add them while the custard is still bubbling and the alcohol cooks off, leaving a flat, sweet pudding. Stirred in once the pan has cooled slightly, the rum keeps its warmth and the butter melts into a satin finish.

Grated bittersweet chocolate on top isn’t decoration. It cuts the sweetness of the whipped cream and the custard, giving the pie the contrast it needs to read as grown-up rather than cloying.

Chef Tips

• Whisk the second milk, flour, cornstarch and egg yolks until smooth before tempering. Lumps now mean lumps in the finished pie.
• Pour the boiling milk into the slurry slowly while whisking, then return the whole thing to the pan. Reverse-tempering scrambles the yolks.
• Cool the custard until it stops actively steaming before adding the rum, otherwise the alcohol flashes off and you lose the headline flavor.
• Press plastic wrap directly onto the surface while it chills to prevent a skin from forming.
• Use a Microplane on a chilled chocolate bar for the topping. Warm chocolate smears.

Variations

• Swap dark rum for spiced rum or a splash of bourbon for a deeper, oakier finish.
• Trade the graham cracker crust for a chocolate cookie crust to double down on the chocolate-rum combination.
• Fold ½ teaspoon of instant espresso into the hot custard for a mocha-rum version.