Hole--in-the-wall cookie and muffin store does a brisk business with SMU students and Snyder Plaza shoppers.. In Short Tucked away in a quiet corner, this teensy Snyder Plaza cookie and muffin shop is a popular hidden find. All products are baked in small quantities throughout the day to ensure freshness. Customers can gorge on the selection of delectable cookies like white or milk chocolate, peanut butter and snickerdoodle or snack on a healthy low fat blueberry oat bran muffin. Fresh squeezed lemonade and limeade are all made in house. Special orders are available.