Wow looks like I've found my "bring a salad" for Australia Day.
Question though - in the picture the chilli (I'm guessing) is red, yet the recipe clearly states a green chilli, along with green capsi***, mint, parsley and spring onions. Was a red chilli used and should we?
You can get Sumac (or Simeh) from any middle eastern store the usually have it in a large quantity but are usually really helpful to give you a small amount for about $2, I have however found it at health food stores and general supermarkets as Ground Sumac.
I have made Bill's Potato Salad many times and we are planning to serve it at our Christmas Lunch this year. The sugar makes all the difference so do not leave it out. I use Dutch Cream potatoes to make this as they hold together well. If you can't get this variety try Royal Blues for the best result. The mint just finishes it off. I think I will make it tonight it is so good.....
I made this for our Boxing Day Dinner tonight...very, very good and everyone loved it. It's going in my file of "tried and proven family favourites." Teamed up with a tomato/feta/basil salad the table looked very Christmassy!