Rinse the fish fillets and pat them dry with paper towels.

In a large mixing bowl, combine the flour, baking powder, salt, and black pepper. Whisk well to combine.

Slowly add the beer while stirring until the batter is smooth and slightly thick.

Heat oil in your frying pan or deep fryer over medium-high heat until it reaches 350°F (175°C).

Lightly dust each fish fillet with flour.

Dip the floured fish into the batter, ensuring it's fully coated.

Carefully place the battered fish into the hot oil, cooking in batches for about 4-5 minutes on each side until golden brown.

Remove the fish with a slotted spoon and place it on a plate lined with paper towels to drain excess oil.

Serve the beer battered fish hot with your favorite sides.