Preheat the oven to 350°F (177°C).
Line 9 cups of a muffin pan.
Add the chopped carrots, mashed banana, almond butter, apple cider vinegar, and vanilla extract to a bowl and stir.
Add the cinnamon, nutmeg, spelt flour, salt, baking soda, and baking powder.
Stir until almost fully incorporated.
Stir in the walnuts and raisins.
Pour the batter into the muffin cups and bake for 14–17 min.
Allow the muffins to cool for around 10 minutes before moving them to a rack to continue cooling.