This project is an interactive web app that combines illustration and web development to create a fun and practical experience: a timer for cooking potatoes. In addition to programming all the logic in JavaScript, I personally designed the illustrations that accompany each stage, reinforcing the visual identity of the project. The application works very simply: when you enter, you can open a window with a specific size and choose the type of potatoes you want to prepare. From there, a timer is activated with step-by-step instructions tailored to the selected cooking method. This way, the user not only measures the time, but also follows a short visual and written guide that accompanies them throughout the process. This project allowed me to experiment with the integration of design and programming, seeking a balance between usability, aesthetics and fun.