Pre-heat over to 350 degrees F. Lightly spray the cups of a standard size muffin tin with cooking spray or line with paper liners.
Mix the chia seeds and water in a small bowl and set aside for about 5 minutes. It should form a thick gel after a few minutes.
2 tbsp chia seeds
Mix the 2 flours, baking powder, cinnamon, salt and coconut sugar together in a large mixing bowl. Mix well to make sure everything is distributed and no clumps remain.
1 cup brown rice flour, 1 cup chickpea flour, 2 tsp baking powder, 1 tsp cinnamon, 1/2 tsp sea salt, 1/2 cup coconut sugar
Add the milk, vinegar, melted coconut oil, chia seed mixture and optional vanilla to the bowl and fold together until all the dry ingredients have been wetted.
1 cup almond milk, 2 tsp white vinegar or apple cider vinegar, 3 tbsp coconut oil, 1 tsp vanilla extract
Add the blueberries and chocolate chips and fold together a few times to distribute throughout.
1 cup fresh or frozen blueberries, 1/2 cup dairy-free chocolate chips
Use a large ice cream scoop or spoon to scoop the batter into 12 muffins tins. Option to sprinkle them with a little coconut sugar or brown sugar. Crushed walnuts also make a great topping! Bake for 30 minutes.
Remove from the oven and let sit in the pan for 2-3 minutes then gently pop each muffin out with a knife and and place on a cooling rack to finish cooling.