For syrup, in small pan, mix sugar and water. Bring to boiling, stirring til sugar dissolves. Remove from heat. Cool for 30 minutes.
For orange cordial, score orange peels into four lengthwise sections; remove peels with your fingers. Reserve fruit for another use. Using a sharp knife, scrape off white portions from peels. Discard. Cut peels into strips. For pear cordial, score and thinly slice pears.
Pour cooled syrup into a sterilized 2 quart glass jar. Add orange peel strips or pear slices. Pour vodka into jar; stir gently. Cover jar with a tight fitting lid. Allow to stand (steep) in a cool dry place for 3 weeks.
LIne a colander or sieve with several layers of 100 percent cotton cheesecloth or coffee filters. Set colander over a large bowl. Strain fruit cordial through a sieve. Discard orange peel strips or pear slices.
Transfer strained cordial to sterilized jars or bottles. Seal and label. Store at room temperature for p to 2 weeks. Makes about 5 cups.