(Do not preheat the oven yet until after the dough has chilled. When you do, you will preheat at 350℉.) Set the vegan butter out to soften if it has not already softened. You want the butter to be cool still and soft to the touch but not warm and melty.) Chop the walnuts if you are using them and if you didn't purchase them pre-chopped.
Make the flax egg by mixing the ground flax with the water. Set aside for about five minutes while you are prepping the other ingredients.
4 teaspoons ground flax, 3 Tablespoons water
Add the quick oats, flour, baking soda, cinnamon, cloves, salt and cornstarch to a medium sized bowl and whisk together. Set aside.
3 cups quick minute oats, 1¾ cups all-purpose flour, 1 Tablespoon cornstarch, 2 teaspoons ground cinnamon, 1½ teaspoons baking soda, ½ teaspoon salt, ¼ teaspoon ground cloves
Mash the ripe banana and measure it out to exactly one cup. Plan on using 2-3 medium-sized bananas. You might not use all of the banana but plan on that many just in case. But please, measure out only one cup of mashed banana. Discard (or eat) any remaining.
Add the softened vegan butter and sugars to a large bowl and use a mixer to combine until fluffy.
¾ cup vegan butter, 1 cup packed brown sugar, ½ cup granulated sugar
Add the flax egg, agave nectar, and vanilla extract and continue mixing until well combined. Stir in the mashed bananas.
4 teaspoons ground flax, 1 cup ripe bananas, mashed, 2 Tablespoons agave nectar, 2 teaspoons vanilla extract, 3 Tablespoons water
Add the dry ingredients and fold together just until well combined. You don't want to over mix.
Add in the chopped walnuts and vegan chocolate chips. These are optional but highly recommended.
½ cup chopped walnuts, ½ cup vegan chocolate chips
Cover loosely and refrigerate for at least two hours.
When it's time to bake the cookies, preheat the oven to 350 degrees F. Line a cookie sheet with a silicon baking mat or parchment paper. I prefer to use parchment paper.
Create cookie dough balls that are about 1 ½ tablespoons in size. I use a cookie dough scoop to get the best size. Place the dough balls on the prepared baking sheet with room to spread. I use a half-size baking sheet and get twelve cookies per sheet. Refrigerate the dough between batches. (See the notes and blog post for hints to keep your cookies from spreading too much.
Bake the cookies for about 10 minutes or until golden around the edges and lightly golden on top.Allow the cookies to cool for about 10 minutes on the cookie sheet, then move to a cooling rack lined with parchment paper to cool completely. Begin the next batch and cook until the dough is finished. See notes for baking suggestions.
Store cookies in an air-tight container in a single layer or with parchment paper between the stacks of cookies so they don’t stick to each other. Cookies are best if eaten within 3-4 days. They will freeze for a couple of months if tightly covered.