Place the pear, raspberries, and water in a medium saucepan. Bring to boiling; reduce heat. Cover and cook for 6 minutes or until very tender. Cool mixture.
Puree mixture through a food mill, baby food grinder, blender or food processor. Press mixture through a fine mesh sieve to remove seeds. Use within 1 day, or freeze up to 1 month.
Spoon finished food into ice cube trays. Cover with waxed paper and freeze until firm. When ice cubes are frozen, remove cubes from tray and store in a resealable plastic freezer bag or freezer container. Label package with contents and date. Use within 1 month. Before serving, let thaw in the refrigerator overnight.