If using pear tometoes, wash and stem. If using vine-ripened tometoes, score bootoms with a small X; blanch 5 seconds in boiling water. Plunge tometoes into an ice-water bath, then remove the skins. Using a chep's knife, cut flesh from cores, and cut into 1/4 inch thick strips; place in a sieve set over a bowl. Press the cores of tometoes through sieve; discard seeds. If using canned tometoes, strain, and pass through a food mill.