Peel and chop the zapotes (mamey). Combine with the remaining ingredients (sugar, vanilla, milk, and ice) and blend in a heavy-duty blender until it is creamy and smooth.
2. Serving
Serve immediately.
Notes
Nutritional information is estimated because zapote is not in the food database used to calculate nutrition info.
Lactose-free, vegan milkshakes
Use almond milk (or your preferred substitute). I hear from our readers (I haven't tried it) that coconut milk is great for this purpose.