I discovered, the other night, well after the munchies had set in and I was craving cinnamon toast, that we were out of cinnamon. But my girlfriend had gotten a thing of Hershey’s Special Dark cocoa powder… 
It was a massive hit and my girlfriend said it tasted like a chocolate glazed donut.
For your consideration:
Preheat oven to 350F/177C
Soften 1-2Tblsp/15-30ml of butter for each slice, according to how buttery you want it, and spread evenly.
Sift cocoa powder, generously, onto buttered bread.
Sprinkle liberally with sugar or powdered sugar
Bake to desired gooiness/toastiness.
And, of course, it could be made with cannabutter. 
Munch carefully.