Japanese Style Steak - Rothliving

Ingredients

• 4 sirloin steaks, well marbled, about 8 ounces each
• Kosher or sea salt, to taste
• 4 tablespoons sake or dry white wine
• 3 tablespoons mirin (sweetened sake)
• 2 tablespoons dark soy sauce
• Japanese or other hot mustard (not sweet or sour)
• 2 English cucumbers, peeled and seeded
• 1 cup rice wine vinegar
• 1 cup dashi
• 4 tablespoons dark soy sauce
• 2 tablespoons sugar