1 (6 oz.) pkg. cherry flavor gelatin
1 (15 1/2 oz.) can crushed pineapple
1 (16 oz.) can whole cranberry sauce
1 (8 oz.) sour cream

Dissolve gelatin in 2 cups boiling water. Blend pineapple (and juice), cranberry sauce and sour cream in a blender or processor until sour cream is thoroughly blended. Stir into gelatin. Pour into loaf pan and freeze overnight.