Dice jalapenos finely with a food processor.
Combine jalapenos and vinegar in a large pot.
Heat until boiling, then simmer for 10 minutes.
Strain the mixture into another pot, squeezing out the juice.
Return juice to the pot, add sugar, and mix well.
Heat until boiling, stirring constantly.
Add pectin when boiling vigorously, and keep stirring.
Boil for one minute, then turn off the heat.
Remove the foam from the jelly surface.
Pour hot jelly into clean jars, leaving space.
Step 11
Wipe jar edges, and seal lids tightly.
Step 12
Place jars in boiling water for 10 minutes.
Remove jars, and let cool before using.