Preheat a fan-forced oven to 180°C (356°F). Grease 8 cups in a non-stick muffin tray with neutral oil. (I used a muffin tray with cups measuring 7cm x 3cm / 3in x 1in.)
In a mixing bowl, whisk together the dairy-free milk and vinegar. Set aside for 5–10 minutes to curdle. Add the mashed banana, maple syrup, neutral oil, vanilla extract, and grated carrot to the bowl. Whisk until well combined.
125 g Carrot, 135 g Ripe banana, 80 ml Maple Syrup, 90 ml Dairy free milk, 1 teaspoon Vinegar, 1 teaspoon Vanilla extract, 2 tbsps Neutral oil
Sift in the gluten-free all-purpose flour, oat flour, baking powder, baking soda, cinnamon, and ginger. Gently fold to combine. Then fold in the crushed walnuts. Let the batter sit for 5 minutes (see tips above).
80 g Gluten free All Purpose flour, 130 g Oat flour, ½ teaspoon Baking soda, ¼ teaspoon Baking powder, ½ teaspoon Ground cinnamon, ½ teaspoon Ground ginger, 35 g Walnuts
In a small bowl, combine the crushed walnuts and maple syrup.
35 g Walnuts, ½ teaspoon Maple syrup
Evenly divide the batter into the greased muffin cups. Spoon the walnut topping onto each muffin. Gently flatten the tops using the back of a wet spoon to help them bake evenly and rounder.
Bake for approximately 19 minutes or until a toothpick inserted in the center comes out clean. Let muffins cool in the tray for 5 minutes, then transfer to a wire rack to cool completely.