Fill any size jar with violet blossoms. Do not use wilted flowers as they look like bugs when the jelly is done. Cover with boiling water. Add a lid and let steep 24 hours. Strain the blue liquid through a cheesecloth-lined sieve. Discard the blossoms.
To 2 cups of the infusion, add the juice of 1 lemon and 1 package of powdered pectin (sure-jel). Bring to boil, then add 4 cups of sugar. Bring back to boil, boil hard for 1 minute. Pour into glasses and seal with wax (melted). Small wine glasses are very nice.
