I used a peanut butter cookie shortbread crust instead of the vanilla wafer crust (from the Pie and Pastry Bible by Rose Levy Beranbaum). (epicurious.com)
Consumers can enjoy the buttery taste of shortbread cookies in every batch with a salted caramel sweetness. (preparedfoods.com)
Lots of times with shortbread recipes, the biggest culprit is not using the right amount of butter or flour. (userealbutter.com)