Pre-heat the oven to 180C (356F) fan-forced and line a 12-hole muffin tin with cupcake wrappers.
Sift the flours and cinnamon together in a large bowl and then stir though the brown sugar. Make a well in the middle.
In another bowl, combine the buttermilk, yoghurt, eggs and oil.
Stir the wet ingredients into the dry ingredients until just combined.
Gently fold through the berries.
Divide the batter between the muffin cases.
Bake the muffins for 20 minutes or until golden on top.
Let them cool on a wire rack.