The first ever vegan chicken wings to feature a realistic 'bone' are set to go on sale in supermarkets this month. Plant-based street food brand Biff's Plant Shack has created a sugarcane 'spear' which runs through its Crispy Fried Jackfruit Wingz, made from jackfruit, mushrooms, carrots and a secret herb and spice mix. It's the 'hero product' in Biff's new …