Contributed to the echo by: Pat Buttons Jell-o Mold Put the broccoli and water to a full boil. Remove from heat and add the jello and mix thoroughly. Let it cool a bit. (You could put the mixture in a bowl and then place the bowl over a larger one filled with ice.) When cool enough add the sour cream, vinegar, mayonnaize. Chill until firm and unmold if desired.