Preheat the oil in the deep fryer to 350°F (180°C).
In a bowl, combine the flours, sugar, baking powder and salt. Make a well in the centre and pour in the egg and buttermilk. Blend until smooth.
Slide a wooden skewer into the centre of each sausage. Coat well in the batter, one at a time. Fry two sausages at a time, until the batter is golden brown, about 5 minutes. Watch out for splattering. Keep warm while you repeat with the remaining sausages.