Apparatus and method for slicing a food product having a non-uniform cross-sectional area. A laser line scanner scans the cut face of the food product. A line scan camera receives light reflected from the cut face of the food product. The line scan camera is positioned such that the line field of view of the line scan camera intersects the scanning line of the laser line scanner at the cut face of the food product. A controller determines an area of the cut face of the food product using the light reflected from the cut face of the food product and advances the food product to be cut by the cutting device by an amount such that a next slice of the food product cut by the cutting device will have a thickness such that the next slice will be of the predetermined weight based upon the area of the cut face.