Diddy Riese Cookies is an American cookie eatery based in Westwood, Los Angeles. ^[1] Diddy's sells cookies, ice cream, brownies, Hawaiian shave ice, coffee, and milk. The restaurant is something of a local legend for its made-to-order ice cream sandwiches. Customers pick out the types of cookies from a dozen made fresh in-house, as well as a scoop of ice cream from two dozen Dreyer's flavors. In 1995, Diddy Riese created the made-to-order ice cream sandwich offering different flavor combinations as a featured item on the menu. Customers can choose 2 cookies from a selection of 10 flavors to pair with one flavor of ice cream from a selection of 12 flavors. It is widely held that Diddy Riese Cookies, because of their low discounted prices coupled with their high quality, sells more fresh, handmade cookies daily than any other single retail cookie store in the United States.

Diddy Riese was founded in 1983 near the University of California, Los Angeles campus in Westwood, Los Angeles. ^[1] Diddy Riese originally sold a cookie for 25 cents for 32 years. They have since raised the original price by only 25 cents. First-time customers are often amazed that they can still buy a cookie for 50 cents and a dozen cookies for $4.50. Due to this low-cost mainstay, Diddy's attracts long lines on Thursday, Friday, and Saturday nights, when UCLA's classes are in session. However, the lines are much shorter during the day and on other nights. Weekly trips to Diddy Riese are common among UCLA students, but also students from nearby colleges like USC, Occidental College, or Loyola Marymount University. Diddy Riese is also a popular destination for many tourists visiting the Los Angeles area from Northern California, out of state and other countries. Its 32-year history has led to Diddy Riese being considered by many as a Los Angeles landmark.

The founder of Diddy Riese has said that he intends to keep the establishment a family business and not franchise out new store locations.

The name comes from the founders' grandmother who is named Diddy Riese.

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