The pomegranates displayed in Mexican markets usually show several beautifully cut samples of the fruits to entice shoppers with a view of the jeweled seeds held within. Pomegranate juices make a wonderful sweet-sour syrup to add color and sweetness to fruit drinks or cocktails. The juice can also be drizzled over fruit, such as mangos or peaches. Store in a covered jar or bottle in the refrigerator. It keeps for months.
With a large, sharp knife cut the pomegranates in half and then break them into sections.
Hold the sections in a bowl of cold water in the sink (to prevent juices from splattering), and pick out the red seeds, discarding the thin white membrane, and place them in a small bowl.
Put the seeds in a blender or citrus juicer and blend about 5 seconds.
Pour the juice through a fine-mesh strainer into a nonreactive 1-quart saucepan.
Discard the seeds and debris left in the strainer.
Add the sugar to the juice and stir until dissolved, 2 to 3 minutes.
Bring to a boil over medium heat, then reduce heat to medium-low and simmer, stirring frequently, 5 minutes.