Preheat the oven to 350 degrees Fahrenheit.
In a large bowl, combine the mashed banana, coconut oil, almond milk, agave, and vanilla. Set aside.
In a separate bowl, combine the flour, cinnamon, baking soda, baking powder, and a pinch of salt.
Combine half of the dry ingredients to the wet ingredients and mix well.
Then combine the rest of the dry ingredients. It helps if you slowly combine the dry ingredients. It makes it easier to mix everything and makes for less clumps.
Once everything else is mixed, fold in the blueberries.
Line a muffin pan with muffin liners.
Add 3-4 tablespoons of batter to each muffin cup.
Bake the muffins for about 30 minutes and enjoy!