The Christmas tree is up, the tea lights are sparkling, wood is burning in the fire pit, and it’s the culinary highlight of the festive season and the year. Nigella is indulging in a little kitchen-table tourism with food from near and far to warm up the winter evenings and add a special sparkle to the season. Expect wintry walks bolstered by warming and celebratory food and drink: melt-in-the-mouth Linzer cookies, gloriously pink pomegranate cocktails, smoked salmon on black bread and Norwegian pork ribs with Swedish-inspired Jansson’s temptation.