3
Meanwhile, make the crème fraiche. Soak the gelatine in cold water for 5-10 minutes until soft. Place a small saucepan over a low heat and gently warm the milk with the scraped vanilla seeds and pod, along with the sugar. Stir until the sugar dissolves, then remove from the heat and squeeze the softened gelatine to drain. Whisk the gelatine into the milk until dissolved, then pour the mixture into a bowl set over iced water to cool. Stir in the crème fraiche and, when the mixture has completely cooled, discard the pod and divide it between 4 bowls or serving glasses. Place in the fridge for at least 15 minutes to set, but ideally a few hours or longer