Prep the produce: Wash everything well.
Core the apple, chop the cucumber, and peel the ginger. If using kale, strip the tough stems.
Layer the blender: Add coconut water first, then spinach, cucumber, apple, avocado, ginger, chia, and lemon juice. Ice can go on top.
Blend until silky: Start low, then increase to high for 45–60 seconds, or until the texture is smooth and pourable.
Taste and adjust: Add more lemon for brightness, more coconut water if it’s too thick, or a small pinch of salt to round out the flavors.
Serve or chill: Pour into a glass and drink right away, or chill for 10 minutes if you prefer it colder.