In a small bowl, mix 2 tablespoons of cold water with 10 grams of unflavored gelatin powder. Let it sit for 5 minutes to bloom.
In a saucepan, heat 500 ml of full-fat milk and 250 ml of fresh cream over medium heat. Add 100 grams of sugar and stir until it dissolves completely. Do not let the mixture boil.
Remove the saucepan from heat and add the bloomed gelatin to the milk mixture. Stir well until the gelatin dissolves completely.
Pour the mixture into 6 individual serving bowls or ramekins. Allow it to cool to room temperature, then refrigerate for at least 4 hours or until set.
In another saucepan, combine 200 grams of fresh raspberries, 50 grams of sugar, and 2 tablespoons of water. Cook over medium heat until the raspberries break down and the mixture thickens slightly.
Allow the raspberry sauce to cool, then spoon it over the set panna cotta in each serving bowl.
Garnish with a few fresh raspberries and mint leaves before serving.