What you're looking for is Aqua Fortis. Nitric acid, water and iron filings, steel wool, ect. When heat is applied it turns red, red brown, or near black depending on how much is used, and how much heat it is given, and how much iron is dissolved. This was the most widely used stain for maple in the 18th c. and well into the 19th. You can buy it ready to use, or do a search for a formula.