01 - Preheat oven to 375°F. Line a 12-cup muffin tin with paper liners or grease each cup lightly.
02 - Whisk together all-purpose flour, whole wheat flour, sugar, baking soda, baking powder, and salt in a large bowl until thoroughly blended.
03 - In a separate bowl, whisk buttermilk, egg, and melted butter until smooth and well incorporated.
04 - Pour wet mixture into dry ingredients. Fold gently with spatula or wooden spoon just until combined—avoid overmixing to prevent tough texture.
05 - Gently fold raisins and caraway seeds (if using) into batter until evenly distributed.
06 - Divide batter evenly among prepared muffin cups, filling each approximately three-quarters full.
07 - Bake for 16 to 18 minutes until toothpick inserted into center emerges clean and tops are golden brown.
08 - Let muffins rest in tin for 5 minutes. Transfer to wire rack to finish cooling or serve warm with butter and honey.