"Pepe's" off J11 - M1 (Dunstable Road opposite the Halfway House Pub) have won the National chip shop of the year Award a few times (believe the list is up on display) very rare to see it empty.
But the Chippy that sticks out in my mind I have visited is at Morcambe Bay Unfortunately it escapes me exactly where it was.. I do recall asking for 2 large cod, they said those your looking at are small, we have run out of the large (those 4 small cod were larger than any large cod I have had from any inland chippy) and those 4 cod with chips fed the 8 of us in the group were were traveling. and they were soooo enjoyable too.