for example enter "2" and then pick an ingredient from the select menu to scale the drink to 2 ounces of it
Blend, then serve Neat in a Hurricane Glass
Notes: Mix rum, cream of coconut, heavy cream and pineapple juice in a blender. Add ice and blend for 15 seconds. Garnish with a fresh pineapple wedge and a cherry.
Sourced to the Caribe Hilton in San Juan, Puerto Rico via Forbes
https://www.forbes.com/sites/brittanyanas/2020/04/18/how-to-make-pia-coladas-according-to-the-hotel-that-invented-them/