Wonder Flavours Pistachio Cream
The distinct taste of pistachios with hints of vanilla ice cream.
Safety Data Sheets for Wonder Flavours are available from https://diy.wf/SDS/
Went out on a limb getting this flavour, but was pleasantly surprised. Not too nutty, but complex and delicious. I only used it sparingly (1.5% to start) but you could probably go to 5% quite happily.