Preheat the oven to 350°F and lightly grease a 12-well muffin tin. I use olive oil.
In a medium bowl, combine bananas, eggs, oil, applesauce, honey, milk, and vanilla. If you're using brown sugar, add it now. Mash until bananas are thoroughly smashed and the whole mixture is well combined.
3-4 bananas, very ripe, 2 eggs, ½ cup olive oil, 4 oz unsweetened organic applesauce, 1/3 cup milk of choice (coconut, cashew, cow, etc. - depending on your dietary restrictions or preferences), 1 tsp vanilla extract or paste, ¼-½ cup brown sugar, 1/4 cup honey
In a separate small bowl, combine the flour, psyllium husk powder, baking soda, baking powder, salt, and if you like, cinnamon. Whisk to fully incorporate the psyllium powder - otherwise it likes to clump up once it meets the wet ingredients.
1 ½ cups gluten-free flour blend, ½ cup psyllium husk powder, 1 tsp baking soda, 1 tsp baking powder, ¼ tsp salt, 1 tsp ground cinnamon
Add the dry ingredients to the wet, and mix until fully combined. The batter will be quite thick.
Fold in any optional ingredients you choose.
½ cup shredded or flaked coconut, ½-1 cup chocolate chips, ½ cup chopped nuts (walnuts, pecans, almonds, etc)
Spoon the batter into the prepared muffin tins. They will be approximately 3/4 full if you're using a standard size muffin tin. Smooth the tops if it will bother you to have them look "rustic" when they're done.
Bake for 12-15 minutes, depending on your oven. When done, they should be slightly browned on top, and they should spring back when touched lightly.
Let cool in the muffin tins for 10-15 minutes, then carefully remove to a wire rack to cool completely.