Refrigerator biscuit roll

• 8 oz (225 g) plain flour
• pinch of salt
• 4

Sift the flour and salt on to a plate. Cream the butter and sugar in a mixing bowl until soft and light. Lightly mix the egg and vanilla essence and beat into the creamed mixture. Add half the sifted flour and mix to a soft paste, then add remaining flour and the walnuts and mix to a soft dough. Turn on to a floured work surface and shape dough into a roll about 2 inches (