Walkers Shortbread Lemon Thins. We've taken the Walkers pure butter shortbread you know and love and created a light and crisp Thin version - then added a touch of tangy Sicilian Lemon. This is the lightest, most delicate shortbread we've ever created, with a true, zesty lemon flavor only ripe, juicy Sicilian lemons can offer. Baked to Walkers demanding shortbread standards, we've followed the original recipe handed down from Joseph Walker himself over 100 years ago. Only the finest natural ingredients are used, with no flavorings, colorings or additives. A deliciously light snack with cappuccino, espresso, coffee or tea. These lemon thins make a wonderful crisp companion to desserts such as ice cream, mousse and fruit.