Which book by Julia Donaldson and Axel Scheffler is set in a snowy winter landscape and features an appearance by Father Christmas?

The book you're referring to is "The Gruffalo's Child" by Julia Donaldson and Axel Scheffler. In this story, set in a snowy winter landscape, the Gruffalo's child embarks on an adventure through the snow, encountering various animals and eventually meeting Father Christmas. The tale combines elements of wonder and discovery, capturing the magic of winter.