Boil the basil and mint leaves together. After they've sustained a full rolling boil for about a minute remove from the heat and allow it to steep and cool off for roughly 10 - 15 minutes before straining it. Discard the leaves.
Place the liquid back into the pot - stir in the pectin and boil again. Once it has reached a rolling boil stir in the sugar - keep stirring it continuously. After a tad more than a minute turn off the heat and skim off any foam.
Ladle hot liquid into half pint jars, leaving 1/4 inch of head space.
Clean and seal the jars - process in a hot water bath for roughly 15 minutes.