Prepare the Potatoes: Cut the Agria potatoes into uniform size chips, approximately 10mm in thickness. Leave the skin on for added texture.
Boil the Potatoes: Wash the cut potatoes until the water runs clear. Boil in salted water, stirring initially to rough up the edges, then simmer for 10-15 minutes until soft but still holding their shape.
Prepare the Fish Cure: Mix sugar, salt, lemon zest, and lime zest to make a cure for the fish. Apply to the Pollock fillets and set aside.
First Fry for Chips: After boiling, cool the potatoes completely. Then fry at 140°C until the outside starts to caramelize. Cool again.
Make the Batter: Combine plain flour, rice flour, baking powder, turmeric, beer, and sparkling water to make a smooth batter.
Prepare the Fish for Frying: Rinse off the cure from the fish. Dust with a thin layer of flour, then dip in the batter.
Fry the Fish: Fry the battered fish at 180°C, starting with the largest piece to ensure even cooking. Fry until golden and crispy.
Final Fry for Chips: Increase the oil temperature to 190°C and fry the chips until they are golden and crispy with dark edges.
Plating: Season the fish and chips while hot. Serve immediately with crispy batter bits for garnish.