Chickpea Falafel Patties

Ingredients

• 2 cups dried chickpeas (or four 15-ounce cans, drained)
• 5 garlic cloves
• ½ sweet onion, sliced
• 1 cup cilantro
• 1 cup parsley
• 3 teaspoons ground cumin
• 2 teaspoons ground coriander
• 1 teaspoon salt
• ½ teaspoon black pepper
• ⅛ teaspoon ground cardamom
• 1 tablespoon baking powder
• Extra-virgin olive oil, as needed
• Lemon wedges, for serving