Line two baking trays with parchment paper and leave to the side
Mix together the plain flour, caster sugar and baking powder in a large bowl until combined well
Gradually mix in the beaten eggs a bit at a time and mix fully before the next addition of eggs - your mixture shouldn't be sticky (however, if you find it is very very dry and not mixing well then add a touch more egg from a 3rd!) I used my hands to mix
Pour in the chopped pistachios & chocolate chips and knead well to combine the flavourings and the biscotti well!
Turn the dough out onto a lightly floured surface and knead a few times so its smooth
Split the dough into two even sizes and roll out to form thick but flat sausages/logs (I recommend 4cm in width, 2-3cm in depth and whatever length is produced!)
Place one on to each of the baking trays and bake in the oven for 30 minutes!
Once baked, remove from the oven, keep them on the trays, and keep the oven on but reduce it to 160C/140CFan!
Leave the logs for 10-15 minutes until they have cooled slightly
Cut the logs into the biscotti shapes, about 2-3cm in thickness and line them up again on the trays with the cut side up and bake in the oven for 10-15 minutes until they are dry through (poke them a bit and if they're still a bit cakey then bake for a couple minutes longer!)
Remove from the oven and leave to cool
Dip the ends into the melted chocolate and sprinkle with the chopped hazelnuts!
Enjoy!
Notes
This is obviously my favourite combination of flavours, hence the recipe - however, you can try a variety of ideas such as replacing the pistachios with the same weight of dried cranberries, stoned dates, chopped hazelnuts, almonds etc! Its entirely up to you!
These last for about 2 weeks in an airtight container, but mine never last that long!