½ cup apple vinegar
1¼ cups water
3½ cups (1½ lbs.) sugar
Green coloring
½ bottle Certo
Wash 1 packed cup spearmint leaves and stems. Place in saucepan and
crush. Add vinegar and water. Bring quickly to a boil; remove from fire.
Cover and let stand 10 minutes. Add sugar and mix. Bring to a boil over
hottest fire, during which time add green coloring. Use coloring which
fruit acids do not fade. As soon as mixture boils, add Certo, stirring
constantly. Then bring to a _full rolling boil_ and boil hard ½ minute.
Remove from fire and skim. Strain hot jelly into glasses. Paraffin at
once. Makes about 5 glasses (6 fluid ounces each).
Or omit mint leaves and add ½ to 1½ teaspoons spearmint extract after
jelly is removed from fire.