Supermarket chain Morrisons have added an exciting twist to the traditional Yorkshire pudding - they've turned it into a pizza base. Yorkshire pudding pizzas go on sale tomorrow (Saturday) at all Morrisons stores. The treat consists of a batter base (made in Doncaster) filled with tomato sauce and mozzarella cheese. There is a choice of two toppings - classic pepperoni or meat feast with mini meatballs, spicy beef and jalapeno chillies. The pizza costs £3. Morrisons have assured pud lovers that the crust will be made in a similar way to classic Yorkshire puddings, and topped in the same manner as a pizza. But you'll need to move fast to get you Yorkshire pudding pizza r hands on one - the limited edition products are only on sale until February 20. The first Yorkshire pudding recipe dates back to 1747.