In a blender, combine vanilla ice cream, milk, pistachios, and rosewater. Blend until smooth and creamy. Tip: For a thicker shake, use less milk or more ice cream.

Divide the shake between two tall glasses, filling each about 3/4 full. Tip: Chill glasses beforehand for a frosty experience.

Pipe or spoon whipped cream on top of each shake, creating a tall mound. Tip: Use a piping bag with a star tip for a professional look.

Garnish with crushed pistachios, a drizzle of honey if using, and edible rose petals. Tip: Lightly crush the pistachios with a rolling pin for texture.

Serve immediately with a spoon and straw. Tip: Add a sprinkle of ground cardamom for extra Middle Eastern flair.