Simmered Shrimp

Bahan-bahan (5 porsi)

• 5 black tiger shrimp ((4.4 oz, 125 g; with shells and heads on))
• ½ cup sake
• 2 Tbsp mirin
• ½ cup dashi (Japanese soup stock)
• 2 Tbsp usukuchi (light-colored) soy sauce ((you can use regular soy sauce))