Place the biscuits in a freezer bag and crumble with a rolling pin.
Empty the crumbled cookies into a bowl. Add the melted butter. Mix well. Place the pastry frame on a flat surface. Pour in the cookies evenly and press down well with the back of a spoon. Place in the freezer for a few minutes.
Gently heat the pear cubes in a saucepan for a few minutes. Mix the powdered sugar with the NH pectin in a small bowl. Increase the heat slightly and, as soon as it starts to boil, pour in the sugar/pectin mixture and cook, stirring constantly, for 2 minutes. Remove from heat and add the gelatine, previously softened in a bowl of cold water. Mix well. Leave to cool slightly and pour into the frame over your cookie. Place in a cool place.
Place gelatine leaves in a bowl of cold water. Pour 20g liquid cream into a small bowl and heat in the microwave. Add the gelatine leaves, wrung out and softened. Allow to cool slightly. Pour Philadelphia, mascarpone, fromage blanc, lemon zest and caster sugar into a bowl. Mix with an electric mixer. Add the liquid cream and warmed gelatine mixture. Pour into the frame and chill for a few hours.
Pear jelly 80g mixed pears 2g gelatin
Place the gelatine sheet in a bowl of cold water. Make a pear jelly by heating 80g of mixed syrup pears in a saucepan. Remove from the heat and add the gelatine, wrung out and softened. Allow to cool slightly (temperature < 40°C). Pour over the frame and refrigerate for at least 3/4 hours.
Carefully remove the frame. Serve whole or in individual portions. I decorated with speculoos cookies.