Mix the non-dairy milk and apple cider vinegar in a small bowl and set aside to curdle, about 5 minutes.

Mix the flour, baking powder, cocoa powder, cinnamon and salt together in a large bowl until combined. Add the curdled milk, maple syrup, coconut oil and vanilla. Mix with a wooden spoon until just combined. It should be a tad loose-seeming.

Heat a large, non-stick pan over medium-low heat. Drop ¼ cup measures of the batter into the pan (not too many at a time!). When bubbles start to peak through the surface and you see a bit of light browning/crisping up on the underside, flip the pancakes over carefully, about 1-2 minutes. Repeat for the other side, remove from the pan and set aside on a covered plate to keep warm.

Serve with maple syrup, sliced bananas, berries or whatever other accompaniments you like.