Silky tips
Skim any foam off the custard base before portioning to keep the surface smooth.
Use shallow dishes for faster setting and a higher caramel-to-custard ratio.
After chilling, leave uncovered in the fridge for 30 min to prevent condensation before torching.
Slightly Firm tips
Grease molds lightly and run a thin knife around the edge before unmolding.
Chill overnight for the cleanest slices; the custard firms as it rests.
If transporting, skip the sugar crust and top with brittle or toasted nuts instead.