Salad Bayam Jepang dengan Saus Wijen (Gomaae)

Bahan-bahan (4 porsi)

• 3 Tbsp toasted white sesame seeds
• 1 Tbsp soy sauce
• 1 Tbsp sugar
• 1 tsp Diamond Crystal kosher salt ((for blanching))
• 1 bunch spinach ((8 oz, 227 g))