First, slice the king oyster mushrooms as thinly as possible, to about 1/6th inch slices.
Next, preheat oven to 400F degrees. Line a baking tray with parchment paper.
Meanwhile, the oven is preheating, add the canola oil, salt, maple syrup, and smoked paprika to a bowl.
Next, combine the ingredients. Taste and adjust the ingredients as needed.
Brush and evenly coat the mushroom pieces.
Then, lay each mushroom piece onto the parchment paper, leaving space in between each piece (do not crowd).
Bake for 25 minutes, flipping at 15 minutes.
Finally, remove mushroom bacon slices from the oven and allow the pieces to crisp up for at least 5 minutes before serving. This will allow the bacon to further firm up.
Serve.