Salad Semangka

Bahan-bahan (4 porsi)

• 1 kg / 2 lbs watermelon
• 1 small Spanish red onion (, finely sliced)
• 3 tbsp red wine vinegar
• Garam dan merica
• 5 tbsp extra virgin olive oil
• 1 1/2 tbs fresh mint (, roughly chopped)
• 75 g / 3 oz Danish feta cheese (, crumbled into medium size pieces)
• Whole mint sprigs (, to garnish)