I added an egg for moisture instead of water but otherwise followed the recipe. It's fantastic! Meaty, filling, very flavorful, a GREAT burger.
Loved the combination of texture and flavours, kept to the quantities but cut out the flour and, as I am not a Vegan, substituted 2 beaten eggs and some dried onion to soak up the moisture. Served with dip of natural yoghurt seasoned with ground cumin, cardomon and coriander, salt and pepper.