Begin by peeling and slicing your banana into small pieces. If you wish for a creamier texture, microwave the banana with brown sugar for 20-30 seconds. Allow to cool.

In a large blender, add vanilla Greek yogurt followed by chopped watermelon and the cooled banana. Layering helps ensure a smooth blend.

Blend on high speed for about 30-60 seconds, or until smooth and creamy. Stop to scrape down the sides if necessary.

Pour the smoothie into chilled glasses and optionally garnish with fresh mint or a slice of banana. Serve immediately.