1 cup pistachios, lightly toasted | 1/3 cup water | 1 tablespoon red wine vinegar | 1 teaspoon kosher salt | 3 tablespoons extra-virgin olive oil | | process the pistachios in a food processor to get them as fine as possible. with the motor running, pour in the water, vinegar, and salt and process until smooth, scraping down the sides as neede. | | again the motor running, drizzle in the olive oil. taste and adjust with more salt or vinegar. store in the fridge for up to 10 days. | | smear on a plate and top with roasted root vegetables | drizzle over lamb meatballs, server on basmati rice