These muffins are delicious with homemade honey butter (mix 4 tablespoons butter with 1 tablespoon honey).
Preheat oven to 375°F. Grease a standard muffin tin (12 muffins) with butter or use paper muffin liners.
In a large bowl, stir together flour, sugar, spices, baking powder, baking soda, and salt; set aside.
In a separate bowl, whisk together yogurt, butter, vanilla and the egg. Make a well in the center of the dry ingredients and add yogurt mixture. Stir until just combined. Fold in carrots.
Spoon batter into prepared muffin cups. Bake muffins until a toothpick inserted in center of one comes out clean, about 20 – 30 minutes.
Transfer muffins to a cooling rack. Serve warm or at room temperature.