<Li> IU = International units </Li> <Tr> <Td_colspan="2"> Percentages are roughly approximated using US recommendations for adults . Source: Kraft Foods USA </Td> </Tr> <P> The product known as Kraft Dinner (KD) in Canada, Kraft Macaroni & Cheese Dinner or Kraft Mac and Cheese in the United States and Australia, and Macaroni Cheese or Cheesey Pasta in the United Kingdom, is a nonperishable, packaged dry macaroni and cheese product . It was first introduced under the Kraft Dinner name in both Canada and U.S. in 1937 . The product also developed into several other formulations, including Kraft's Easy Mac Cups, renamed Macaroni & Cheese Dinner Cups, a single - serving product designed specifically for microwave ovens . </P> <P> The product's innovation was to combine the nonperishable dried macaroni noodles with a processed cheese powder, so that the dish could be prepared by cooking the pasta and adding the cheese powder, butter, and milk . </P>

When did kraft start making macaroni and cheese