Hugh Fearnley-Whittingstall’s roast mushroom and kimchi sourdough sarnies recipe

“This is immensely satisfying food: fat mushrooms, roasted until charred and oozing their dark juices, sandwiched in toasted sourdough with roasted red onion and a generous amount of kimchi (or kraut),” says Hugh Fearnley-Whittingstall. “Give it a go in one piece if you like, but no one will think l