To prepare the strawberry layer, add the strawberries, ½ cup yogurt, ½ cup milk, ½ banana, 1 tsp maple syrup and 3 ice cubes to a blender or food processor. Pulse until smooth. Transfer to a freezer-safe container and place in the freezer while preparing the other layers. Clean and dry the blender or food processor.

For the blueberry layer, add the blueberries, ½ cup yogurt, ½ cup milk, ½ banana, 1 tsp maple syrup and 3 ice cubes to the blender or food and pulse until smooth. Transfer to another freezer-safe container and place in the freezer. Clean and dry the blender or food processor again.

For the banana layer, add the remaining ingredients to the blender or food processor and pulse until smooth. Transfer to a freezer-safe container.

Leave the smoothie mixtures in the freezer for at least 1 hour, until they are a thick slushy consistency.

Remove the smoothies from the freezer and alternate pouring them into 4 small glasses to form 3 layers in each glass. Serve immediately.