Prepare canner,jars, and lids. In a stainless steel saucepan, combine corn syrup, sugar, andwater. Heat over medium head stirring till dissolved. Increase heat and bringto a boil for one minute.
Reduce heat and stir in pecans and vanilla. Boilgently, stirring constantly for 5 minutes. Remove from heat and fold in apples.
Ladle hot syrupinto hot jars, leaving 1/2" headspace. Remove air bubbles. Wipe rim, add lid and rings and process inwater bath for 15 minutes at a full boil. Wait 5 minutes, remove and place ondishtowel overnight undisturbed.
The next day remove rings and clean jars andlabel with recipe name and date. Store in a cool, dry, and dark place. This recipe tripled will make 8 pint size jars