Ingredients
-250g pack softened butter
, plus extra for the tins
-100ml strong black coffee (made with 2 tbsp coffee granules), cooled
-280g self-raising flour
-250g golden caster sugar
-½ tsp baking powder
-4 egg
-1 tsp vanilla extract
-85g walnut
, 2 tbsp roughly chopped, the rest finely chopped