Instructions
Toast the Pistachios: Preheat oven to 350°F (175°C). Spread pistachios on a baking sheet and toast for 5-7 minutes, or until aromatic. Let cool slightly.
Blend with Sugar: Place toasted pistachios and powdered sugar in a food processor. Blend until the pistachios are finely ground.
Add Chocolate, Milk, and Butter: Pour in the melted white chocolate, 2 tablespoons of milk, and butter. Blend until smooth, adding more milk if needed for a creamy texture.
Store and Chill: Transfer the pistachio cream to a glass jar or container. Refrigerate for at least 1 hour before using.