01 - Preheat oven to 375°F. Line a 12-cup muffin tin with paper liners or grease thoroughly with butter or cooking spray.
02 - In a large mixing bowl, whisk together the flour, sugar, baking soda, baking powder, and salt until evenly blended.
03 - In a separate bowl, whisk together the buttermilk, melted butter, and egg until fully incorporated and smooth.
04 - Pour the wet mixture into the dry ingredients. Stir gently with a spatula until just combined—some small lumps should remain. Do not overmix.
05 - Gently fold in the raisins and caraway seeds if using, taking care not to overwork the batter.
06 - Divide the batter evenly among the prepared muffin cups, filling each about three-quarters full.
07 - Bake for 18 to 20 minutes, or until a toothpick inserted into the center of a muffin comes out clean and the tops are golden brown.
08 - Let the muffins cool in the tin for 5 minutes, then transfer to a wire rack to cool completely. Serve warm with butter and honey if desired.