In many countries folks eat avocados for dessert, in custards and in shakes like this one. The riper the avocado, the sweeter the shake, so you’ll want to adjust the sweetness to taste. If you have matcha (green tea powder) on hand, add some for a boost of antioxidants, nutrients and fiber.
Blend the milk, sweetened condensed milk and ice in a blender until very smooth. Add the avocado flesh and blend again until smooth. The mixture will be quite thick; add cold water a few tablespoons at a time, blending after each addition, until the mixture is pourable. Taste and add more sweetened condensed milk if you want it sweeter. Serve in chilled glasses with straws.