Combine crumbs, sugar and butter. Press into bottom of 23 cm springform pan. Bake at 1790ºC or 10 minutes. Combine cream cheese and sugar, mixing at medium speed until well blended. Add eggs, one at a time, mixing well after each addition. Blend in vanilla; pour over crust. Toss apples with sugar and cinnamon. Spoon apple mixture over cream cheese; sprinkle with pecans. Bake at 180ºC or 1 hour and 10 minutes. Remove from oven. Heat apple jelly and rum together. Spoon over cheesecake; cool. Loosen cake from rim of pan and remove carefully. Chill cheesecake in refrigerator before serving. Recipe by Betty Kruse; as published in the Cedar Rapids Gazette 19Nov94