Søtsuppe (Sweet Soup)

Grandma's recipe, from the most fragile and well used cookbook I've ever seen!

• 2 Qts water
• 1/2 C sago...from the book I'm quoting.  My best guess: tapioca
• 1 C raisins
• 1 C prunes
• 1 lemon
• 2 sticks cinnamon
• 1 C sugar
• 1 T vinegar
• 1 glass jelly or grape juice

Wash sago, raisins, and prunes.  Cook them in water for an hour.  Add sugar, cinnamon, sliced lemon and vinegar.  Boil again for thirty minutes.  Add jelly or juice about fifteen before soup is fully cooked