Add your cashews and half of your veggie broth to your food processor. Blend until the mixture is thin but creamy. Add avocado, onion, garlic, chives, basil, parsley, lemon juice and apple cider vinegar. Blend adding in vegetable broth until the dressing gets to a pourable texture. This is a matter of taste as some people like a thinner dressing and others a thick one that really sticks to your greens. Refrigerate. Keeps for one week in glass jar or plastic airtight container.