Stonehenge Loaf

I just finished Terry Brook's novel, a Measure of Magic. Really great! The first chapter begins with a character from left field, the Rag Picker who makes up little verses while he works, picking up rags of course.

There were no Hobbits in the story, but somehow it brought to my mind this question. How did Hobbits make that special food that nourished them on all of those long trips? Some sort of bread I suppose. So I put my own ingredients together. If I combined corn meal with whole wheat flour, would I be able to travel a far distance? The jury is out- experiment incomplete-none the less, I have high hopes.