Gandour factory is one of the leading manufacturers in the Middle East that produces multiple products of sweets, snack, and baked goods. The factory aims to increase the responsiveness to customers‘ demand. Gandour factory has many production lines, one of these lines is a line that produces different flavors of cupcakes. When the factory changes from one flavor to another, 4 hours are lost to change the flavor and run the production line again, this time is known as the changeover time. Moreover, the factory changes the cupcake flavor five times a week, which results in 20 hours/week of time loss due to changeovers. The purpose of this project is to minimize the changeover time, and help the factory in increasing their productivity. Single-Minute Exchange of Dies (SMED), a lean manufacturing technique that dramatically reduces the changeover time, was used to reduce the time. The changeover time was minimized from 240 minutes to 108 minutes, which shows a reduction of 55%. Additionally, the results will increase the profit of the factory by an average of 1.5 million SR per year.