1 Calories, Fat, Protein, Fiber, & Carbs In 100 Calorie Shortbread. 2  Calories, Fat, Protein, Fiber, & Carbs In Sandies Shortbread. 3  Calories, Fat, Protein, Fiber, & Carbs In Panera Shortbread Cookie.  Calories, Fat, Protein, Fiber, & Carbs In Lorna Doone Shortbread Cookies.