Now you bake plang (uh-huh) with Martha White (yes, ma'am), Goodness gracious, goodness alive, Martha White,
Now you'll bake better biscuits, cakes, and pies,
'Cause Martha White's a rising flower,
The one all-purpose flower,
Martha White

The story:

Singing this in Georgia with a bluegrass jam group.

I'm a born-and-raised Yankee, playing this song since I was a teenager. I always thought "plang" was some old Southern recipe. And that if you were worth anything, you were considered by Southerners to be a "rising flower."