MEASURE prepared fruit into a large saucepan. Add lemon juice. Heat gently until juice starts to flow. Simmer, covered, 15 minutes.
ADD sugar to fruit and mix well.
PLACE saucepan over high heat, bring to a full rolling boil and boil hard 1 minute, stirring constantly. Remove from heat.
IMMEDIATELY stir in liquid fruit pectin.
STIR and skim for 5 minutes to prevent floating fruit.
POUR quickly into warm sterilized jars filling up to 1/4 inch (0.5 cm) from rim.
SEAL while hot with warm sterilized 2-piece lids with new centers.