Preheat oven to 425°F. Line two 12-count muffin tins with paper liners or grease with non-stick cooking spray. Set aside.
In a large bowl, whisk together the mashed banana, brown sugar (see note below), honey, egg, and vanilla bean paste/extract. Stir in the almond milk, baking powder, baking soda, cinnamon and salt until combined.
Add flour, ½ cup at a time, stirring until just incorporated into mixture. Spoon batter into prepared tin, filling ¾ full.
Bake for 5 minutes at 425°F, then keeping oven door closed, lower temp to 350°F and bake for 13-15 minutes, or until muffins are lightly browned. This oven trick helps to ensure those large bakery-style muffins.
Remove from oven and let cool for 10 minutes in pan, then remove and cool completely on a wire rack. Serve with butter and/or a drizzle of honey, if desired.