Sprinkle gelatin over cold water, let sit 5 mins.
Cut vanilla beans lengthwise and scrape out seeds.
Heat cream, sugar, vanilla seeds and pods in a saucepan until simmering. Remove from heat and steep for 10 mins.
Add bloomed gelatin to warm mixture, whisk until dissolved completely.
Stir in milk and strain the mixture through a fine-mesh sieve.
Pour into ramekins or glasses, cover with plastic wrap, and refrigerate for at least 4 hours.
Garnish with fresh berries, coulis, caramel, or mint just before serving.