Put 1 envelope unflavored gelatin in a saucepan with ½ cup syrup from a 20 ounce can crushed pineapple.
Place over low heat, stirring constantly, until gelatin is completely dissolved.
Remove from heat; add ⅓ cup mint-flavored apple jelly and stir until melted.
Add crushed pineapple and remaining juice.
Chill until mixture mounds slightly when dropped from a spoon.
Add 1 teaspoon confectioner's sugar to 1 cup heavy cream; beat until stiff.
Fold into gelatin mixture.
Turn into a 5 cup mold; chill until firm.
Unmold to serve and garnish with fresh mint.
Notes
(This recipe was in "The American Weekly" along with other recipes from the chef at the White House. I tried this and found it to be excellent. (Although I never did use fresh mint as a garnish!——other fruits in the season do very nicely.) This recipe will probably be as close as we'll ever get to the White House!)