Richard's Cookie Jar 10130 Warner Ave, Fountain Valley, CA92708 Richard's Cookie Jar is a neighborhood donut shop. It is located inside a shopping plaza on the intersection of Warner…More Avenue and Brookhurst Street in Fountain Valley. When you enter the store, the first thing that you will notice is the sweet scent of its pastries. All of its pastries are made from scratch and baked fresh daily. Besides donuts, breads and muffins, it has your classic cookie favorites, such as chocolate chip, peanut butter and oatmeal raisin. You can enjoy them with a cup of coffee or tea in the quiet comfort of the store.