Can you make bricks out of fireplace ashes?

Because I have a ton now (I cleaned out my ash holder from my fireplace, you can just push them through the floor of the fireplace after you open a metal door kind of thing, it got full when I was pushing ashes in today so I've filled a very large garbage bag with them) And I know of uses like to use them in gardening and on ice, but I'm curious, is there a way to make bricks from them, because that would be useful for me. If so, how?