One of the cooking ingredients that is not easy to find in grocery stores is pistachio paste or butter. However, in recent days, pistachios in shells or roasted shelled started to have a significant presence almost everywhere, from the local grocery stores to Walmart and Target, and of course online stores that sell nuts in bulk. I bought a 3-pound bag of shelled raw pistachios because I wanted to make paste to use for ice cream and baked goods. The roasted ones are just too brown and produce an odd color that is not too appealing.