2: Pour 500 ml whole milk into a saucepan over medium heat and bring to a boil.
3: As soon as the milk boils, turn off the heat, add the mint leaves, stir, cover, and let stand for 15 minutes.
4: After this time, pour the contents of the pan into a fine strainer set over a bowl. Squeeze the mint leaves well to fully express the flavor.
5: Pour the mint milk back into the pan (which you will have quickly cleaned) and put back on low heat. Add 50 g dark chocolate, cut into small pieces or better yet into chocolate drops (pistoles) and 20 g caster sugar.
6: With a whisk, stir gently to melt the chocolate completely, turn off the heat as soon as it is finished.
7: Dilute 25 g cornflour in 3 tablespoons water, and whisk this mixture into the milk all at once. The cream will thicken in seconds.
8: Divide the cream between ramekins, cups or glasses and refrigerate for at least 1 hour.
9: Serve cold, if possible decorated with a few mint leaves.
Remarks
If you prefer a little more sweetness, you can increase the weight of sugar a little, or replace half of the dark chocolate with milk chocolate. The amount of mint leaves indicated is quite indicative, if you want a more pronounced mint taste, don't hesitate to increase (very) significantly the dose.