Place butter, syrup, salt and vanilla into Thermomix bowl and melt together for 4 minutes at 60°C on speed 2. Set aside.
Meanwhile, spread nuts and seeds onto large flat tray and toast in 200°C oven for about 10-12 minutes until crunchy. Set aside to cool slightly.
Spread oats onto tray and drizzle with butter mixture. Stir and mix by hand until evenly distributed. Reduce oven temperature to 160°C. Cook oats for around 30 minutes, stirring occasionally to ensure edges are not overdone.
Place dates into Thermomix bowl and chop for 4-5 seconds on speed 6. Place into large mixing bowl.
Place cooled nuts into Thermomix bowl and with dial set to closed lid position, pulse on Turbo for less than 1 second, just to chop roughly. Add to mixing bowl.
Cool oats slightly before adding to the bowl.
Add craisins and coconut and mix by hand. Allow to cool completely before storing in an airtight container for up to 4 weeks...but it won't last that long, I can assure you!