Combine basil and pine nuts in food processor, pulse for 1 min or so
Add garlic cloves to pine nut + basil mixture and continue pulsing until thoroughly combined
Add olive oil while continuing to pulse garlic + basil + pine nut mixture; this will allow you to gage thickness / creaminess of the pesto while everything is blending
Add full avocado and pulse until thoroughly combined
Add pistachio's, parm and s/p - pulsing everything together until desired taste / creaminess is achieved
To finish, squeeze juice from 1/2 - 1 lemon to lift and lighten; add lemon juice to taste
Serve with pasta, crusty bread, charcuterie boards, use as a spread on sandwiches, the possibilities are endless!