Add the ingredients to your bread machine pan in the order given by the manufacturer.
¼ cup butter, 1 ½ cups buttermilk, ½ teaspoon vanilla, 1 large egg, 3 cups sifted all-purpose flour, ½ cup light brown sugar, 1 tablespoon baking powder, 1 teaspoon baking soda, 1 ¼ cups raisins or currants
Press the cake cycle. Scrape down the sides in the first two minutes of the cycle.
Once the cycle has ended, remove from the pan and let cool for about 10 minutes before slicing (or for cleaner slices, let cool to room temperature before slicing and serving with plenty of butter).
Notes
Butter: I use salted butter. If using unsalted butter, add 1/4 teaspoon salt with the flour but be sure that it doesn't touch the yeast.
Brown sugar: The bread is mildly sweet. If you would prefer less sweet bread, you can decrease the sugar to 1/3 cup or not pack the sugar.