I’ve noticed when I make pesto, like the one I did the other day, the basil tends to go brown, after a while. After advice from Annabel Langbein and a bit of reserch on the internet, it seems that blanching the leaves beforehand is the answer to ever delicious looking pesto. So here is an updated version of my pesto recipe that will work just as well with red basil pesto as with green. This time I’ve used pecan nuts, which I think work well with the more bitter flavour of the red basil, but you can use pine nuts as in traditional pesto, if you prefer.
Red Basil Pesto
2 cups fresh basil leaves, green or red
2 cloves of garlic
1/4 cup pecan nuts
1/2 cup olive oil
1/2 cup grated parmesan cheese
Salt & pepper to taste
Toast the pecan nuts lightly over medium heat until golden. Be careful not to burn. Leave to cool. Blanch the basil leaves for just a few seconds in plenty of boiling water, then rinse and cool in an icebath. Dab the leaves dry on a clean teatowel. They don’t need to be superdry, just not soaking wet, so they water out the pesto. Place all ingredients in a blender and mix until smooth. Add salt and pepper to taste.
Transfer the basil pesto to clean glass jars, and pour over a little olive oil to cover, then seal. The pesto will keep in the fridge for up to two weeks.