Chickpea Fries with Yogurt Dipping Sauce

INGREDIENTS

• 1 clove garlic, small and chopped fine
• 1 teaspoon cumin (optional)
• 1 1/2 tablespoon mint, chopped fine
• Sumac, for dusting
• 2 cups vegetable oil
• 2 cups chickpea flour
• 4 cups water
• 1 tablespoon kosher salt
• 2/3 cups yogurt (thin -- not Greek style)
• 1/8 teaspoon kosher salt