You will need a 20cmx20cm loose bottomed brownie tin and a preheated oven to 180 degrees C.
Place all ingredients - excluding the chocolate chips into a food processor and blitz until smooth.
Remove the food processing jug and carefully remove the blade. Stir through almost all of the chocolate chips (reserve a few for adding to the top after cooking).
Bake the mixture in the oven for 25-30 minutes at 180 degrees C. Check it has cooked through by placing a skewer into the blondie and checking it comes out clean. If not, return to the oven for another few minutes.
Once it is cooked, allow cooling for 5 minutes before releasing the blondies from the tin and allowing to cool for a further 30 minutes on a cooling rack.
If you reserved some of the chocolate chips, add them now to the top so they melt into the blondies.
Cut into 9 equal pieces and serve or store in a lidded, airtight container with a piece of paper towel in the bottom, for up to 3 days in the fridge.