Combine ingredients (A) in a small nonstick pan. Stir and cook until sugar dissolves. Remove to a bowl and leave to cool.
Sift the plain flour, bicarbonate of soda and baking powder together. Put the sifted ingredients and salt into a mixing bowl. Make a well in the centre and pour in the cooled syrup. Stir to mix then add beaten egg and corn oil. Mix into a dough.
Divide dough into small portions. Roll lightly into a ball and coat with sesame seeds. Heat oil in a wok, drop the sesame-coated balls in and fry until golden brown. Dish out and drain well.