Calling all shortbread lovers! Visit this new pop-up at Westfield London next weekend for an exclusive Walker’s Shortbread sampling event. Guests will have an opportunity to taste Walker’s Shortbread delicious all-butter shortbread, with plenty of Shortbread fingers samples available for them to indulge in the buttery goodness of their warmed Scottish Scottish shortbread as the aroma of baked shortbread fills the air. Launched by founding father Joseph Walker…