Prepare the Fruit: Peel and cube the mango if using fresh fruit, and cut pineapple into bite-sized chunks. If using frozen fruit, there is no need to thaw before blending.
Add Ingredients to Blender: Place mango, pineapple, milk or juice, ice cubes, yogurt, honey, and vanilla into the blender. Pouring liquid in first helps everything blend evenly and smoothly.
Blend Until Smooth: Start blending on low speed, then increase gradually until the mixture becomes creamy and silky. This usually takes about 30 to 45 seconds depending on your blender.
Check the Texture: Pause to see how thick the smoothie looks. If it feels too thick, add a splash more liquid. If it seems thin, add more frozen fruit or ice cubes.
Taste and Adjust Flavor: Take a small taste before serving. Depending on how ripe the fruit is, you may want a little more honey for extra sweetness.
Pour and Serve Fresh: Pour into chilled glasses and serve right away while cold. Garnish with pineapple wedges, mango slices, or mint leaves for a bright finishing touch.