July 14 is National Mac and Cheese Day. We look back at how Kraft's blue box dinners became the go-to, now selling about 1 million a day.

Kraft Dinner boxes are seen displayed at a supermarket in 1945. (The Kraft Heinz Company) Kraft’s branding tactics appear to be working, too.

The Associated Press reported that it amounts to about 6.5 million boxes of Kraft Macaroni & Cheese Dinner, one of the Kraft Foods Group's signature brands.

Kraft Dinner boxes are seen displayed at a supermarket in 1945. (The Kraft Heinz Company) Kraft’s branding tactics appear to be working, too.

Upon its debut in 1937, Kraft’s boxed macaroni and cheese product — then called Kraft Dinner — was primarily yellow, with the exception of a few navy sections on the front of the box.

Kraft Macaroni and Cheese has become so synonymous with its packaging that it’s almost unthinkable the product was sold in anything other than a blue box. Skip to content WKRN News 2 ...

Upon its debut in 1937, Kraft’s boxed macaroni and cheese product — then called Kraft Dinner — was primarily yellow, with the exception of a few navy sections on the front of the box.

Upon its debut in 1937, Kraft’s boxed macaroni and cheese product — then called Kraft Dinner — was primarily yellow, with the exception of a few navy sections on the front of the box.

Kraft Dinner boxes are seen displayed at a supermarket in 1945. (The Kraft Heinz Company) Kraft’s branding tactics appear to be working, too.

Kraft Macaroni and Cheese has become so synonymous with its packaging that it’s almost unthinkable the product was sold in anything other than a blue box. Skip to content WATE 6 On Your Side ...

Kraft Macaroni and Cheese has become so synonymous with its packaging that it’s almost unthinkable the product was sold in anything other than a blue box. Skip to content WANE 15 ...