You can adjust the sweetness to your taste by using more or less agave syrup, or by changing the ratio of frozen mango to ice cubes. The more mango, the sweeter and creamier the drink — and the more stable the slush texture, because more frozen fruit offsets the alcohol-to-liquid ratio.
Processing Aperol, Prosecco, and frozen mango into a creamy, smooth slush is technically more demanding than a regular smoothie: the frozen mango mass forms a dense layer that does not break down evenly without sufficient blade power. The Vitamix breaks the frozen mango into fine, even snow at high speed in seconds — before frictional heat re-liquefies the slush. Make sure to use the tamper: it pushes the dense mass continuously toward the blades and prevents the air pocket that forms in blenders without a tamper when processing frozen ingredients. Serve immediately — alcohol lowers the freezing point and this drink melts faster than non-alcoholic frozen desserts.
For a non-alcoholic version: replace Aperol and Prosecco with non-alcoholic aperitif and sparkling water, and increase the mango quantity slightly for more body. Enjoy this cocktail in moderation — it is intended for adults.