In a bowl add all the wet ingredients starting from mashing the banana. Add the coconut oil and the yogurt. Mix well. Set apart.
In a separate bowl add the chickpea flour, coconut sugar, baking powder and spices. Mix.
Gently combine the dry ingredients into the wet ones.
Add the frozen blueberries at the end. Mix.
Fill a cupcake tin with the mix.
Bake to 400F/180C for 20/25 min.
As there is no gluten involved, don't expect the muffins to rise like a mountain, they will look more like a plateau.