Instructables member Tye Rannosaurus has baked something special for Halloween, blood-red-on-the-inside and black-as-soot-on-the-outside Brimstone Bread:
Rumor has it, when demons in Hell make this bread, they roll the dough in the deep pits of sulfur and soul dust and cook them in the hot brimstone vents. Unfortunately, as you are mortal and have neither access to soul dust or brimstone vents, I've had to make a few adjustments to the recipe for you.
While these rolls aren't actually "Hell Authentic," they're close enough to get the job done.
More of Tye's horrible Halloween recipes can be found at Necro Nom-nom-nomicon.