Heat the oil in a deep fryer or pot to 350°F (175°C).
In a large mixing bowl, combine plain flour, baking powder, baking soda, salt, and pepper. Mix everything well.
Add egg white into the flour mix and gradually pour the cold water in. Mix everything well until a smooth batter forms and set it asdie.
Now, dredge each sausage with the plain flour, then dip it into the batter. Make sure it is evenly coated.
Then gently drop the battered sausage in the pre-heated oil and fry for 3-4 minutes or until the coating is crispy golden brown.
Remove the fried sausages from the oil and place them over a paper towel or cooling rack.
Serve immediately while hot with fries and peas.