Blood Orange Salad

Bahan-bahan (4 porsi)

• 1/4 red onion (, finely sliced or shaved using mandolin 1 mm thick (~1/2 cup))
• 1/2 tsp white sugar
• 6 tbsp white wine vinegar ((for pickling and dressing))
• 4 tbsp extra virgin olive oil
• 1/4 tsp kosher / cooking salt ((Note 3))
• 1/8 tsp pepper
• 3 blood oranges ((Note 1))
• 1 fennel (, medium, finely sliced or shaved using mandolin 1 mm (4 packed cups, Note 2))
• 1/4 cup parsley leaves