Preheat oven to 180°C or prepare Combi steam oven for use at 160°C. Line a muffin tin with paper or silicone liners.
Place all ingredients except chocolate pieces into TM bowl and blend 20 sec/speed 7. Scrape down and repeat as necessary.
Add chocolate chips and combine using a spatula. Divide batter between muffin liners.
Process in combi-steam oven for 35 minutes at 75% steam or bake in normal oven 15-20 minutes.
Can be reheated in steam oven.
These muffins will freeze well and then easily be reheated in steam oven!
Serve dusted with icing sugar or cocoa powder and some thick (or clotted) cream or coconut cream.