Grilled Cauliflower and Broccoli with Spicy Herb Oil - The Local Palate

Ingredients

• 1 head cauliflower
• 1 head broccoli
• Olive oil
• Kosher salt and freshly ground black pepper
• 1-2 jalapeños or serranos or to taste
• 2 garlic cloves, unpeeled
• bunch cilantro (leaves and tender stems), roughly chopped
• 1½ cups Italian parsley leaves
• 2 tablespoons white wine vinegar
• ½ cup olive oil plus more as needed