Saus Wafu (Saus Salad Jepang)

Bahan-bahan (3 porsi)

• 1 Tbsp grated onion ((I use a ceramic grater))
• 3 Tbsp neutral oil
• 3 Tbsp soy sauce
• 3 Tbsp rice vinegar (unseasoned)
• 1 Tbsp sugar
• freshly ground black pepper
• 1 tsp toasted white sesame seeds