Blueberry Salad

Bring 2 C blueberries, 1/2 C sugar and 1 C water to boil; boil ½ minute. Add 1 small pkg. strawberry Jello. Cool. Add 3 cut up bananas, 1 8-oz. can crushed pineapple, 1/2 C chopped nuts, ½ C miniature marshmallows. Pour 1/2 of mixture into mold and chill until firm. Top with sour cream. Add the remainder of mixture and chill until firm. When serving add additional sour cream, if desired.