In a large bowl, combine flour, baking soda, salt, cinnamon, cardamom, and set aside. In a separate smaller bowl, combine honey, sugar, eggs, and butter. Stir wet ingredients until combined and fold into dry ingredients.
Once wet and dry ingredients are combined, add carrots and most of the chopped walnuts to the mixture. Prepare muffin tin by oiling each well, or spraying non-stick spray to prevent sticking. Fill the batter in each well about halfway, then top with remaining chopped walnuts
Bake in the oven at 350 for 15-18 minutes. Let cool, and enjoy!