Key tips for success:
- The banana must be fully frozen (at least 6 hours, preferably overnight) and you must use full-fat coconut milk. Both are non-negotiable for a thick, creamy bowl.
- Blend only until just combined (about 30 seconds) to keep the color bright blue – over-blending dulls the spirulina.
- Prep ahead: freeze banana chunks in a single layer, and keep a jar of the dry ingredients (spirulina, chia, protein powder) with a ratio written on it next to the blender for 60-second mornings.
- Leftover base can be frozen into popsicle molds for a kid-friendly treat.