Step 1

Place the beer and flour in a large bowl, then season and whisk to combine.

Step 2

Half-fill a large saucepan or deep-fryer with oil and heat to 170°C over medium heat (a cube of bread will turn golden in 60 seconds).

Step 3

In batches, coat prawns in batter, allowing excess to drip off, then deep-fry for 2-3 minutes until golden and crisp.

Step 4

Remove with a slotted spoon and drain on paper towel. Cover to keep warm.

Step 5

In batches, coat the lemon slices in batter, allowing excess to drip off, then deep-fry for 2-3 minutes until golden and crisp.

Step 6

Remove with a slotted spoon and drain on paper towel.

Step 7

Scatter with salt flakes and serve immediately with extra lemon wedges.