This is on page 278 of 'My way of Cooking' Thermomix cookbook.
This is the first time I've attempted biscotti and its quite easy! I swapped the aniseed liqueur for butterscotch schnapps as its all I had. I found the mixture sticky (not like a dough) but ok once I added a little extra flour to roll the log shapes. When I added the almonds to the mix, my TMX was straining and making some scarey noises so I didn't knead for 40 sec. Still happy with result and will make again experimenting with other nuts and some dried fruits. May try to cut thinner next time...