Michelin-trained chef Poppy O’Toole has shared her easy recipe for air fryer Brussels sprouts with bacon and chestnuts – and she says they’re an ‘underrated’ Christmas side that can be ‘delicious’Michelin-trained chef Poppy O’Toole has shared her easy recipe for air fryer Brussels sprouts with bacon and chestnuts – and she says they’re an ‘underrated’ Christmas side that can be ‘delicious’