For the panna cotta :
Crumble:
Chocolate sauce :
Soften the gelatine leaves in a bowl of cold water. Place the chocolate pieces in a stainless steel bowl. Bring the milk and crème fraîche to the boil. Remove from heat. Pour over the dark chocolate, wait 3 minutes and stir until the mixture is smooth (if there are still dots, mix for 1 minute). Add the wrung-out gelatine to the hot mixture. Mix well. Fill the jars (but not to the brim, to leave room for the pears and crumble). Chill for several hours until the panna cotta has set.
Sand all ingredients together. Bake at 170° for 15/20 mins. Cool on a wire rack.
Heat the milks, pour over the chocolate, wait 3 minutes and stir with a whisk.
-½ box of organic "St Mamet" pears
Pour 1cm of cold chocolate sauce over your frozen panna cotta. Sprinkle a few pear cubes over the chocolate. Finish with 1 tsp crumble.
If you don't want to eat them straight away, refrigerate the chocolate pear panna cotta and add the crumble just before serving. This will prevent the crumble from softening.