Warm the milk in a small saucepan over low heat. Do not boil.
Add the jasmine tea to the warm milk. Cover and steep for 10 minutes.
Strain out the tea leaves or bags and set the milk aside.
In a small bowl, sprinkle gelatin over cold water. Let it sit for 5 minutes.
Reheat the jasmine milk gently. Add sugar and salt. Stir until dissolved.
Remove from heat and stir in the bloomed gelatin until fully melted.
Add vanilla extract. Let the mixture cool until warm, not hot.
Whip the cold cream to soft peaks.
Gently fold the jasmine milk mixture into the whipped cream.
Spoon the mousse into glasses or ramekins.
Chill for at least 4 hours, or overnight, until set.