In a saucepan, mix fresh cream, sugar, egg yolk, and vanilla essence.
Slowly bring it to a boil on a gas hob/ induction.
On a baking tray add water, pour your mixture into ramekin moulds and bake it (called as water bath) for 25-30 minutes using hot air function at 175°C.
Once the crème brûlée is baked, remove the ramekins from the tray and allow it to cool.
While serving, sprinkle castor sugar on top of crème brûlée, with a blowtorch melt and caramelize the sugar until it appears golden in colour.