How an Ottolenghi chef raised three children who eat everything

For 17 years, Claudine Boulstridge has been the woman making sure Yotam Ottolenghi’s recipes work in real kitchens. Along the way, her own children have grown up eating everything from aubergines to octopus. The chef tells Prudence Wade the secret to raising adventurous eaters – plus three family-friendly recipes to try at home