Add the coconut milk, spinach, yogurt, mint, avocado, 1 cup of the ice and 2 tablespoons of the erythritol to a blender and blend until smooth. Taste and add additional ice and/or erythritol if desired. Add the cacao nibs and pulse to combine.
Pour into glasses, top with a sprinkle of cacao nibs and serve immediately.
Erythritol, a sugar substitute, can be found in most health food stores or online.
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