Spray ramekins with cooking spray and wipe off the excess
Pour milk into a saucepan and sprinkle gelatin evenly on top. Soften for 5 minutes
Warm the milk over low heat and stir frequently. It shouldn't boil or simmer, just hot enough for the gelatin to dissolve
Dissolve the sugar in the milk
Remove from heat and stir in the cream and vanilla extract
Pour into moulds and refrigerate overnight
To unmould, fill a bowl with hot water and dip the ramekins in the bowl for a few seconds to release
Tip upside down onto a plate and enjoy!