01 -
Preheat oven to 350°F (175°C). Thoroughly grease a mini loaf pan.
02 -
In a small bowl, whisk together the flour, baking powder, and salt. Set aside.
03 -
In a medium bowl with an electric mixer, cream the butter and sugar together until light and fluffy, about 2-3 minutes.
04 -
Beat in the egg until fully incorporated, ensuring a smooth consistency.
05 -
Add the sour cream and vanilla extract. Mix until well incorporated.
06 -
Gently fold in the flour mixture and stir until just combined. Use a spatula to incorporate any remaining pockets of flour or butter.
07 -
Transfer batter into the prepared pan, smoothing the top with a spatula. Bake for 20-25 minutes or until the center is set and a toothpick inserted comes out clean.
08 -
Allow to cool in the pan for about 10 minutes before transferring to a cooling rack to cool completely.