Healthier fish and chips

Ingredients

• 1.5 - 2 litres sunflower oil
• 2 tbsp plain flour
• ½ tsp fine sea salt
• 4 x 200 g skinless white fish fillets, such as haddock, cod or hake
• 40 g cornflour
• 100 g plain flour
• 1 tsp paprika ((not smoked))
• 100 ml real ale, (chilled)
• 50 ml fizzy water, (chilled)
• 1 tbsp white wine vinegar