1: Pour 300 g milk, 300 g cream and 2 handfuls Verbena leaves into a saucepan. Place over medium heat and bring to the boil.
2: Turn off the heat once the mixture has reached boiling point, then blend. The aim is to distribute the vervain evenly in the milk-cream mixture, to capture the flavors. Cover and leave to stand for a good hour.
3: After this time, strain the mixture through a fine sieve, pressing the vervain well to release all its flavour, then pour back into the rinsed pan, discarding the vervain.
4: Return the pan to a low heat, and gently stir in 80 g dark chocolate in small pieces or pistoles and 1 teaspoon powdered cocoa. When well blended, turn off the heat and cover.
6: Pour everything into the pan and mix well. Preheat oven to 180°C (360°F).
7: Divide the mixture between ramekins and place in the drip tray of your oven. Add enough boiling or hot water to reach halfway up the ramekins.
8: Bake for approximately 30 minutes.
9: Leave to cool after removing from the drip pan, and enjoy warm or cold.
Remarks
The milk-cream-verbena mixture in step 2 can be made in advance, even the day before, to allow the verbena flavors to diffuse. You can make a milk chocolate version, replacing the dark chocolate, in which case I recommend reducing the weight of powdered sugar a little (80g).