Put the gelatin leaves into a bowl or jug and cover with cold water - so as to soak it and get it ready for going in the mix later on. (It is important for it to be cold water or it will dissolve into the water and it will be useless!)
Pour the heavy/double cream, whole milk and vanilla bean extract into a heavy based pan and heat gently stirring occasionally - try not to heat too quickly because it might catch on the bottom and start to burn to mixture.
When the mixture reaches roughly 85C, turn off the heat and pour in the chopped Terry' Chocolate Orange and caster sugar, whisk until completely melted and smooth.
Get the gelatine leaves out of the water and squeeze out the water, then add to the mix and whisk again until completely dissolved.
You can taste test it to see if there are any lumps or a funny texture - If there's lumps in it, or the gelatine hasn’t dissolved fully then the mix isn’t hot enough to melt it fully, so turn the heat back on for a little longer until it is done!
Pour into whatever you are serving in, cover with clingfilm and refrigerate for at least 5 hours or overnight until set.
Decoration
Decorate with whipped cream, grated chocolate, and some more Terry's Chocolate Orange segments!
Notes
I used my Kilner Jars to serve my desserts in - I make sure they are clean by running them through a hot dish washer cycle before using them, but as the mixture is only in there for a couple of days, and the desserts are stored in the fridge, the 'sterilisation' of the jars really isn't important!
I find gelatine is a funny one because you can use more or less depending on how firm you want the mixture but the general rule is…
Firm Jelly: use 7 grams of gelatin to 250ml of liquid
Tender Jelly: use 7 grams of gelatin to 500ml of liquid
Delicate Jelly: use 7 grams of gelatin to 750ml of liquid
These desserts last for 2 days, in the fridge, or you can freeze them for up to 2 months!
You could even use this to create one large pannacotta for the dinner table then follow the same steps, and be sure to set it overnight!