Add liquids first: Pour coconut milk and coconut water into the blender. Starting with liquids helps the blades catch and blend smoothly.
Layer the fruit: Add frozen pineapple and banana (if using). Toss in lime juice, sweetener, vanilla, and a pinch of salt.
Blend until silky: Start on low, then increase to high.
Blend 30β60 seconds until thick and creamy. If itβs too thick, add a splash more water.
Taste and tweak: Add more lime for brightness, more sweetener if needed, or a few ice cubes for extra chill. Blend again briefly.
Serve right away: Pour into cold glasses.
Garnish with a pineapple wedge or toasted coconut flakes if you like.