Chimichurri Rainbow Trout - Riverence Provisions

Ingredients

• 4 cups (1-2 bunches) flat-leaf (Italian) parsley, stems trimmed
• 1 cup cilantro, stems trimmed
• 1/4 cup red onion, roughly chopped
• 2 tablespoons chopped fresh oregano
• 1 1/2 tablespoons chopped garlic
• 1/2 teaspoon sugar
• 1/2 teaspoon salt
• 1/4 teaspoon crushed red pepper flakes
• 1 tablespoon sherry vinegar (acceptable replacements are rice wine vinegar, champagne vinegar, white wine vinegar, and red wine vinegar)
• 1/2 cup olive oil, plus more for grill pan