Or you could do what Burger King in the U.S. did for Halloween one year: put a ridiculous amount of food coloring in it to make it look black.

My toilet water was a dark green the next day o.o

Yeah, I'd recommend that over putting carcinogenic dust in your food.

After doing further research, today I learned that it's specifically cooking meat over a charcoal fire that creates carcinogenic compounds, and not charcoal itself. Ignore me!

No, but it could be interesting. I guess it would probably impart a slightly ocean taste, which could be desirable in some occasions. Another thing I tried is dark cocoa powder, which has similar results color-wise, but obviously tastes like chocolate

I'm stealing it

Yes, it is a pretty potent detoxifier. So definitely not a bread I would eat large quantities of everyday.

More than a few women have found that out the hard way, a month or so after Halloween!

Yes it was just for the color combination. I could not detect a difference in taste. Activated charcoal has some benefits and is recommended in some cases, but it can also mess with the effectiveness of medicines.

Are you asking me if you can add it to a dark brown loaf to make it darker?

To me it tasted the same. I don't see why it shouldn't keep the charcoal properties