Start by selecting young coconuts that feel heavy and make a sloshing sound when shaken. If not pre-opened, have them carefully cracked open (ideally by an experienced vendor or family member for safety).
Once opened, immediately strain the coconut water through a fine strainer (salaan) into a clean container to remove any shell particles or impurities. This ensures a clean, smooth drink. Keep the strained water chilled while preparing the meat.
Using a sharp spoon, carefully scrape the soft coconut meat from the shell. Try to maintain long, ribbon-like strips of the meat (laman ng buko) for traditional presentation. Avoid scraping too deeply into the shell as this can add unwanted tough pieces.
In a glass pitcher (pitsel), combine the strained coconut water and meat strips. Taste the mixture first before adding any sugar (asukal), as young coconuts are naturally sweet. If desired, add sugar to taste and stir until dissolved.
Add ice cubes (mga yelo) to the pitcher or individual serving glasses. Pour the buko juice mixture over the ice. Traditional serving includes both the water and generous amounts of the meat strips.
Serve immediately in tall glasses, preferably with long spoons to enjoy the coconut meat. For best taste and nutritional benefits, consume within 4 hours of opening the coconuts. If storing, keep refrigerated in an airtight container for no more than 24 hours.