Step 1: Preheat the oven to 350 F.

Step 2: Add butter, brown sugar, vanilla, and egg to the bowl of a stand mixer. Mix until well-combined.
Step 3: Add flour, baking powder, baking soda, and buttermilk. Mix in until just combined. Don’t overmix the dough.


Step 4: Stir in the raisins. Spread the dough into prepared pan.


Step 5: Using a sharp knife, make cut a cross into the top of the dough. This allows the dough to cook more uniformly.


Step 6: Bake 30-45 minutes, or until a wooden toothpick inserted in the center comes out clean. Let it cool in the pan on a wire rack for 10-15 minutes.
Step 7: Remove it from the pan, and let it continue to cool on the rack. Serve warm or at room temperature.
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