Place sugar into Thermomix bowl and mill 10 sec/speed 10.
Add almonds and pistachios and mill 20 sec/speed 7.
Add orange oil, almond essence, vanilla, cornflour and egg white and blend 40 sec/speed 5.
Refrigerate until marzipan is not oily and can be worked with easily, around 30 minutes.
Either push into the piping tip to make each ‘tree’ or form by hand. Roll in sugar. Use a little egg white to ‘glue’ the star to the top of the tree. Allow them to air dry. (NOTE: I did try to bake these and they collapsed. So I have concluded that raw is better! Certainly cuter!)