Banana Jam 3 cup mashed bananas 2 Tbsp. lemon juice 1/3 cup chopped maraschino cherries 6 1/2 cup sugar 1 (6 oz.) bottle Combine first mashed bananas, lemon juice, maraschino cherries and sugar in large kettle. Stir constantly and bring to a rolling boil over high heat. Boil hard for at least a minute, stirring constantly. Remove from heat and stir in . Pour into hot jelly jars and seal.