Cut the watermelon. Place the cubes or rounds in a tray.
Crumble the feta cheese and make a paste. Spread on the watermelon squares with a thin layer of feta cheese.
Garnish it with a layer of chopped pistachios and red onion.
Cut the soft cheese in rounds. Place it on top of the circles and top it up with pistachios and red onion.
In a pan add the vinegar and let it cook until it turns syrupy. Keep an eye as this thickens up quickly.
Turn the balsamic vinegar into a reduction by cooking it in a saucepan set over medium high heat until it has thickened and turned syrupy. Keep an eye on it as it can burn. Drizzle the balsamic reduction over the watermelon.
