Place all ingredients in the bowl of a food processor and pulse to combine, then let the motor run until the desired consistency is reached. Serve immediately or transfer to a small bowl and cover with a film of plastic wrap, pressing it gently into the top, and refrigerate until ready to use.
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Notes
Tips for customizing creamy avocado sauce
If you can’t have pistachios, omit them or replace with walnuts
Add a healthy pinch of crushed red pepper flakes or leave in the jalapeno ribs and seeds to make it spicy