To make Yorkshire puddings, preheat oven to 350 degrees F

How to make Yorkshire puddings, preheat oven to 350 degrees F (190 degrees C). Mix flour and salt together in a bowl. In a separate bowl, cream together butter, sugar and egg until light and fluffy. Gradually add the milk, stirring until smooth. Beat for another 30 seconds. Add the cooked apples, sweet potatoes and any other desired ingredients. Simmer for 20 minutes. Serve cold.