Cut the tops off the figs and put them into a blender or food processor along with the water, lemon juice, cinnamon and vanilla and blend until smooth.
Measure all your sugar, placing 4 cups in one bowl and ½ cup into a separate bowl.
Add the pectin to the bowl with the ½ cup of sugar and mix well.
Now add your fix mixture to a pot and stir in the pectin mixture.
Bring to a boil over medium-high heat.
When it reaches a boil, add in the remaining sugar and stir well.
When the mixture returns to a full boil, set a timer and let it boil hard for 1 minute.
Skim off excess foam from the top, and check for gel by dipping out a small amount with a VERY cold spoon.
If it hasn't gelled, you will need to add more pectin (about a tablespoon) and boil for another minute before checking again.
Now ladle your jam into hot, sterilized jars, lid and process for 5 minutes in a hot water bath.