Ingredient:

• 2 cups graham cracker crumbs
• 3 tablespoons sugar
• 6 tablespoons butter, melted
• FILLING:
• 2 packages (8 ounces each) cream cheese, softened
• 1 cup sugar
• 3 large eggs, room temperature
• 3/4 cup pistachio butter
• 1 cup sour cream
• 1 tablespoon grated lemon zest
• 1 teaspoon vanilla extract
• TOPPING:
• 1-1/2 cups heavy whipping cream
• 6 tablespoons confectioners' sugar
• 1 teaspoon vanilla extract
• 1/2 cup pistachios, chopped