October 13th is National Yorkshire Pudding Day

Yorkshire pudding is a common English side dish, a baked pudding made from a batter of eggs, flour, and milk or water. It is a versatile food that can be served in numerous ways depending on the choice of ingredients, the size of the pudding, and the accompanying components of the dish. As a first course, it can be served with onion gravy. For a main course, it may be served with beef and gravy, and is part of the traditional Sunday roast, but can also be filled with foods, such as bangers and mash to make a meal.

Yorkshire puddings are similar to popovers, an American light roll made from basically the same recipe, and to Dutch babies.

Source: Yorkshire pudding - Wikipedia