First step is to put gloves on!
Gently wash/rinse the chillies and pat dry with paper towels.
Cut stalks off and split chillies in half if necessary by slicing down the long part.
Remove as many seeds as possible as you do this (remainder can be removed later)
Place greaseproof paper on a baking tray and place the chillies on top of it.
Put in oven at low heat (approx 100) and monitor carefully until dry/crispy.
First I left them in for 20 mins and then you should check them every 5 mins or so!
After you are satisfied that they are completely dried out, you can add them to a spice grinder and away you go. Be careful of dust from the grinding process as it is easy to inhale!!
Below is the result of my first batch of drying and grinding......
