Blue-Antioxidant Smoothie

Everything in here is blue, and everything is positively loaded with antioxidant power. The maqui powder also serves as a thickener; if you like a thicker, spoonable smoothie, add a little more. Açai smoothie packs—portion-controlled servings of tart puree—come sweetened and unsweetened and are available in the freezer section at health food stores and supermarkets. Always seek out the unsweetened versions!

Serves 1

Combine all of the ingredients in a blender and blend until smooth, adding more water to thin if necessary. Pour into a tall glass and serve immediately.