In a small bowl, whisk together the tahini, apple cider vinegar, water, mustard, garlic powder, onion powder, and sea salt until smooth and creamy. If it’s too thick, add a little water, a tablespoon at a time. The consistency should be simliar to mayonnaise.
In a large bowl, mash the chickpeas with a fork or a potato masher. Add the celery, scallions, carrots, and parsley and gently mix to combine. Gently mix in the tahini dressing.
Refrigerate for at least 2 hours before serving, to allow the flavors to combine. Serve on a sandwich, in a wrap, on a fresh salad, or with crackers and cut veggies.