I've recently started making my own bread, and would like to try to make pumpernickel bread. A friend of mine once mentioned that this uses pumpernickel flour, but I'm unable to find this. The recipes I've seen for pumpernickel bread use rye flour and molasses (or other additives).
Is there such a thing as pumpernickel flour? If so, is it a darker flour that gives its color to pumpernickel bread? Or is traditional pumpernickel bread made with regular rye flour, and is dark because of a very long baking time?