Roast banana into the oven for about 10 minutes or until skin discoloured, or until you notice the skin has browned on all sides.
Once the bananas are cooled off, peel the skin place them into a shallow bowl and mash with a fork.
In a separate medium bowl, mix almond milk and vinegar in a large mixing bowl, and let set for a few minutes to activate. Add the coconut oil, vanilla extract and beat until foamy. Add coconut sugar/maple syrup and banana and mix until thoroughly combined. Add into the banana mixture.
Add together flour, oatmeal baking powder, baking soda and salt; mix until ingredients are fully combined. Finally, stir in the dates and pecans to the mixture.
Line muffin cups (2 ½ inches in diameter) with paper bake cups. Fill the cups with batter.