Prickly Pear Jelly:
3 c. juice
2 oz. pectin powder
1/2 c. lemon juice
5 c. sugar
To prepare juice, gather 2-3 qts. of ripe dark purple fruit. Singe off stickers over open flame. Cover with water and simmer 45 minutes. Strain thru jelly bag or several layers of cheese cloth. Bring juice and pectic to boil in large kettle, stirring constantly. Add sugar and bring to full boil while stirring. Boil 2 minutes, remove from heat, skim off foam. Pour into sterilized jars and seal. Water bath.
Ok - my mom made jelly for years and sealed it with wax. That is how she did this as well. I know that is not the proper way to seal the jars. So, I would recommend wc for the same amount of time you do any other jelly. Enjoy!
Oh, and wear leather gloves while you're messing with the fruit.