Follow the steps in order for the best result.
Begin by preheating your oven to 350°F (175°C). This ensures the oven is ready when the cookie dough is prepared.
In a mixing bowl, combine the dark brown sugar, mashed ripe banana, low-fat mayonnaise, and rum. Use an electric mixer on medium speed to beat these ingredients together until they are thoroughly blended into a smooth mixture.
In a separate bowl, whisk together the all-purpose flour (or whole wheat flour), quick-cooking oats, sweetened flaked coconut, golden raisins, chopped walnuts, baking powder, ground cinnamon, ground nutmeg, and ground ginger. Make sure these dry ingredients are well combined.
Gradually add the dry ingredients to the wet ingredients. Use a whisk or spatula to gently stir until everything is just combined. Be careful not to overmix the dough.
Using a spoon or cookie scoop, drop the cookie dough in 2-tablespoon portions onto a baking sheet lined with parchment paper. Ensure there is some space between each cookie to allow for spreading during baking.
Place the baking sheet in the preheated oven and bake for approximately 19 minutes, or until the edges of the cookies are golden brown and the centers are set.
Once baked, remove the cookies from the oven and transfer them to a wire rack to cool completely. This prevents them from becoming soggy.
Enjoy these delightful Banana Rum Coconut Cookies as a treat or snack!