For a brilliant pesto, try blanching basil
Once the water is boiling, immerse the basil in the boiling water for about 15 seconds. Make sure to have a bowl of ice water on hand to quickly stir in the basil after the 15 seconds have passed, stopping the cooking process in its tracks. Remember to be careful using a sieve or slotted spoon to mash and move the basil.
After soaking the basil in ice water, be sure to dry the leaves as much as possible before using. Then your bright basil is ready to be made into an equally bright pesto! Wondering what to do now with the abundance of fresh basil you have on hand? Make the most of it by taking the rest of your unused peeled basil and freezing it. You can lay the leaves flat in a freezer bag for easy retrieval later or stack some leaves and twist them together to form tight basil bunches.