I tried this mint sauce today, but made several alterations to the recipe. I had plenty of fresh mint in my garden so I picked a good amount and blitzed all the ingredients in a blender. I also added a few sprigs of fresh parsley for a more intense green colour. Possibly my brand of chutney was sweeter, because after tasting it didn't require any more sugar. The fresh mint and parsley gave the sauce a soft but very appetizing green colour, so I decided not to mess with a good thing and left out the food colouring. I know it sounds like a changed everything, but it tasted better than many I've had at restaurants. The mango chutney is definitely the secret ingredient that gives it the BIR flavour, feel free to add fresh mint and still get a great results.