Sift and mix together the plain flour, baking powder, and cinnamon. Add salt. In a different bowl, combine all other ingredients. Pour the wet mixture over the dry, and whisk up with a fork until just combined. Go for a few flour lumps rather than overmixing.
Heat up a skillet with a little oil spray for about 2 minutes. Cook pancakes until they start to bubble and slip easily in the pan. Then flip! Don't be shy. It's 15% technique, 85% confidence. Alternatively, carefully use a spatula. Brown off both sides and serve with lashings of maple syrup.