Prepare the Ingredients: Measure out the frozen mango, peel the ripe banana, and have your milk ready.
Blend: Add the frozen mango, banana, and milk to a high-speed blender. Blend on high until smooth and creamy. Scrape down the sides as needed to ensure everything is well combined.
Adjust Consistency: If the smoothie is too thick, add a little more milk and blend again. For a thicker texture, add a few ice cubes or more frozen mango.
Serve: Pour into a glass and enjoy immediately! For extra flair, garnish with a slice of mango or a sprinkle of chia seeds.