Beer Battered Fish Burgers

Ingredients
* 500g boneless rockling fillets
* 2 cups (300g) self-raising flour
* Grapeseed oil, to deep fry
* 1 cup (300g) mayonnaise
* 1 tbs baby capers, drained and chopped
* 2 tbsp chopped dill
* 30ml lemon juice

Method
1. Half fill a large, heavy saucepan with oil. Heat to 180°C over medium heat.
2. For the beer batter, place most of the flour in a large bowl and season to taste.
3. Whisk in 100ml water and the beer until there are no lumps. Cover the bowl in plastic wrap and rest for 15 minutes.
4. To make the tartare sauce, place the mayonnaise into a medium bowl and mix through the capers, dill, and lemon juice. Season to taste. 
5. Lightly coat the rockling fillets using the remaining flour, shaking off any excess. Coat fillets in the batter.
6. Place gently into oil and cook for 5 minutes until golden brown. Remove and place on a paper towel to soak up excess oil. Serve the fish with the tartare sauce and extra lemon