Step 1: Prepare the Flax Egg - In a small bowl, combine the ground flaxseed with the water. Stir and let it sit for about 5-10 minutes until it thickens.
Step 2: Mash the Bananas - In a large mixing bowl, mash the ripe bananas with a fork or potato masher until smooth.
Step 3: Mix Wet Ingredients - Add the flax egg, avocado oil, vanilla extract, and coconut sugar to the mashed bananas. Mix until well combined.
Step 4: Combine Dry Ingredients - In a separate bowl, whisk together the flour, baking soda, sea salt, and ground cinnamon.
Step 5: Combine Wet and Dry Ingredients - Gradually add the dry mixture to the wet ingredients, stirring gently until just combined.
Step 6: Fold in the Walnuts - If using walnuts, fold them into the batter.
Step 7: Prepare the Baking Pan - Preheat your oven to 350°F (175°C). Grease your baking pan or line it with parchment paper.
Step 8: Bake the Bread - Pour the batter into the prepared baking pan and bake for 45-55 minutes.
Step 9: Cool and Serve - Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.
