Place the rinsed chickpeas into the bowl of a food processor and mix just a few to achieve a chunky consistency. No need for full mash. In case you don't have a food processor you can use a potato masher or even a fork.
In a medium bowl combine chickpeas with onions, garlic, red pepper, seeds, salt and pepper.
Make the homemade mayonnaise. Put the egg yolk and the mustard in a small bowl. Mix and gradually add oil while mixing until all oil is well incorporated.
Add mayonnaise over the chickpea salad and stir to combine.
Serve with pita chips, crackers, toast bread, wraps or whatever else you prefer. I've made Pita Bread Chips, recipe here, but this time I've made them with no oil, just sprinkled some paprika on top of chips.