A cooking appliance having a cooking chamber, a user interface with a selector that allows a user to set a target degree of browning, an imaging device that captures an image of a food item inside the cooking chamber, a computing device in communication with the imaging device and has a software module that receives the captured image from the imaging device and computes a target image based on the captured image and the target degree of browning, and where the target image and the target degree of browning are displayed on the user interface.