For the Farce:
Combine all ingredients within the thermal blender, warming the mixture to 60u00b0C. Transfer this essence into a pastry bag and gently pipe it to cradle within the casoncelli.

For the Sweetcorn Veloutu00e9:
Gently sweat the shallots in butter. Introduce the sweetcorn, the rich broth, and the cream. Allow them to simmer together in harmony for approximately 30 minutes, then blend and pass through a fine sieve until a silken cream is born.

For the Porcini Mushrooms:
Segment the porcini into elegant wedges, poaching them gently in water seasoned with salt, pepper, a clove of garlic, and a solitary bay leaf. Bring the cooking to an end, binding the juices with butter and finely chopped parsley. From the humble trimmings of the porcini, craft a smooth puru00e9e, blended and delicately sieved.

For the Presentation:
Glaze the casoncelli lovingly with butter and Parmigiano. Grace the plate with a bed of sweetcorn veloutu00e9, arrange the casoncelli upon it, and adorn the composition with the porcini and their veloutu00e9. Crown the creation with droplets of vegetable demi-glace, dried nettle leaves, and a baby corn element gently bathed in butter.