Chop the apple scraps into small pieces and roast these into the butter until soft.
Zest the lemon and add a scraped out vanilla pod and seeds.
Add the cinnamon stick, sugar and salt and roast the apples until all the water has evaporated and the apples are caramelized.
Add the Végétop and bring to a boil.
Leave to infuse for 20 minutes on low heat.
Discard the vanilla pod and cinnamon and blitz into a fine cream in a blender.
Sieve the mixture and cool down in the refrigerator.
Reserve in a piping bag.