A method and apparatus is provided for assessing the current state of doneness of a cooking food item. In a preferred embodiment, a sharpened hollow tubular cutting member of relatively small diameter is rotationally activated to cut and remove from a cooking food item a cylindrical core sample, preferably throughout its entire thickness, without substantial distortion of the shape of the sample. Upon expulsion from the cutting member, inspection of the core sample permits visual determination of the current state of doneness of the food item.