Guinness Fish & Chips Serves 4 For The Fish & Chips 3 pounds russet potatoes, scrubbed and cut into thick chips 1 ½ pounds fresh cod fillets, cut into individual portions 2 ¼ cups all-purpose flour, divided 1 ½ teaspoons baking powder Zest of 1 lemon, grated on a microplane 12-ounces Guinness Draught 4 teaspoons