Mark & Spencer has rolled out its 2025 Christmas collection, featuring a surprising blend of U.S. holiday treats and the iconic British Marmite sauce. Shoppers can now grab peanut‑butter‑and‑jelly munch, peppermint bark, and a tangy Marmite‑infused spread all in one aisle. The lineup aims to appeal to both transatlantic taste buds and traditional festive fans.