Take wheat flour in a bowl remove 2 tbsp of flour and add 2 tbsp of custard powder or Cornflour into that. Whisk it till they are incorporated well.
Whisk together all of the dry ingredients listed above, including the granola-muesli mix in the same bowl.
In another bowl, whisk together all the wet (liquid) ingredients including brown sugar.
Pour these mixed liquid ingredients into the dry ingredients, stirring just to combine. Do not over mix it.
Put the big scoop of the batter into the prepared paper muffin cups upto nearly full.
Sprinkle the top of the muffins with granola muesli mix and nuts+seeds of your choice.
In the preheated 190°C oven bake the muffins for 20 to 25 minutes or until a toothpick inserted into the middle of muffins comes out clean.
This quantity yields about 8 big muffins, or 12 muffins of regular size.
For smaller muffins the baking time would be around 12 to 15 minutes.
Once baked transfer muffins to the cooling rack.
Serve warm or at room temperature with cup of tea/coffee or milk.