01 -
In a medium saucepan, combine milk, cinnamon stick, and lemon zest. Heat gently over medium heat until just below boiling point. Remove from heat, cover, and let steep for 10 minutes.
02 -
In a mixing bowl, whisk egg yolks, sugar, cornstarch, and salt until pale and smooth.
03 -
Remove the zest and cinnamon from the milk. Gradually pour the warm milk into the egg mixture while whisking constantly to temper the yolks.
04 -
Return the mixture to the saucepan and cook over low heat, stirring continuously with a wooden spoon or silicone spatula, until it thickens to a custard-like consistency (about 5–7 minutes). Do not let it boil.
05 -
Immediately pour the cream into shallow ramekins or ceramic dishes. Let cool slightly, then refrigerate for at least 2 hours until chilled and set.
06 -
Just before serving, sprinkle a thin, even layer of granulated sugar over each cream. Using a kitchen torch, caramelize the sugar until golden and crisp. Serve immediately.