I am not sure why mastic gum is included in this. Any pesto recipe should have pine nuts in it though.
I was thinking the same thing about the pine nuts. They're definitely a must for pesto!
read the ingredients and then the directions and let me know if it makes sense to you......[it doesn't make sense to me!!!]
A sauce originating in Italy's Genoa region. Use it on pasta, potatoes: you name it!