Cousin Agnes's Blackberry And Thyme Jelly

Instructions

1. Sterilize jars and lids by boiling them in water for 10 minutes. Keep warm until ready to fill.
2. Place Blackberries in a large, heavy-bottomed saucepan. Add Lemon Juice and Thyme sprigs.
3. Bring to a boil over medium-high heat, then reduce heat and simmer for 15 minutes, stirring occasionally, until berries are softened.
4. Remove Thyme sprigs. Measure the berry mixture. You need 4 cups of juice for every 4 cups of Sugar.
5. Return the berry mixture to the saucepan. Add Sugar and Pectin. Stir well to combine.
6. Bring to a rolling boil that cannot be stirred down, and boil hard for 1 minute, stirring constantly.
7. Remove from heat and skim off any foam.
8. Carefully pour hot jelly into sterilized jars, leaving 1/4 inch headspace.
9. Process in a boiling water bath for 10 minutes. Let cool completely before checking for seals.