Chef John's Falafel

Ingredients

• 2 cups chickpeas (garbanzo beans), soaked overnight
• 1/2 medium onion, roughly chopped
• 1/4 cup fresh parsley, roughly chopped
• 1/4 cup fresh cilantro, roughly chopped
• 2 cloves garlic
• 1 teaspoon cumin
• 1 teaspoon ground coriander
• 1/2 teaspoon baking powder
• 1/4 teaspoon cayenne pepper (optional)
• Salt and pepper to taste
• Oil for frying