Pre-heat your oven at 200C/400F/Gas Mark 6.Slice your potatoes into large chunks. I like the skins on mine, but it doesn't matter either way.Toss the potatoes in the oil and seasoning. Roast for 30-35 mins or until tender.While the potatoes are cooking, mix together all the dressing ingredients. If your dressing is too thick add a little more liquid. Set aside.Once the potatoes are cooked through, toss together with the chickpeas, onion and seeds then mix in the almond butter dressing. Serve immediately or refrigerate for a cold potato salad.