Brussels Sprout Kimchi

INGREDIENTS

• 2 teaspoons coriander seeds, crushed
• 1/4 cup gochugaru (coarse Korean red pepper powder)
• 3.5 ounces plus .7 ounces kosher salt
• 1 tablespoon soy sauce
• 1 1/2 pounds small brussels sprouts, trimmed, halved
• 2 tablespoons fish sauce (such as nam pla or nuoc nam)
• 2 teaspoons fennel seeds, crushed
• 1/2 small onion, coarsely chopped
• 2 tablespoons Sriracha
• 2 scallions, sliced
• 1 tablespoon grated peeled ginger
• 4 garlic cloves