Barbecued steak with baked sweet potato chips with a pickled mustardy sauce

This is another paleo dish with grilled steak on the barbecue. It is summer and I like barbecues, what can I do? 🙂 We start preparing the chips. Peel and cut 2 medium sized sweet potatoes into chunky chips. I removed the skin but you could leave it on. Rub the chips well with olive…