Easy Potpourri Gel 1 cup concentrated liquid potpourri 2 envelopes Knox unflavored gelatine Empty jar Heat potpourri until almost to a boil. Remove from heat and add 2 envelopes of gelatine. Stir to dissolve gelatine and pour into clean decorative jar. Place piece of plastic wrap over jar and secure with rubber band. Either place in refrigerator for quick set or leave out overnight on counter. Cover with piece of starched "lace" and wrap with ribbon to decorate. Before using, remove plastic wrap and recover jar with lace cover.