Ingredients
Instructions
- Preheat oven to 350°F.
- Grease an 8" square baking pan.
- Combine the flour and both sugars in a large bowl; cut in the butter until the mixture is crumbly.
- Transfer 1/2 cup of the crumb mixture to a small bowl; stir in the Butterfinger pieces.
- Stir the baking soda and salt into the remaining flour mixture; set aside.
- Combine the milk, sour cream, egg, and vanilla in a small bowl; blend well.
- Add to the flour mixture; stir just until combined.
- Pour the batter into the prepared pan; sprinkle evenly with the Butterfinger crumbs.
- Bake for 40-45 minutes, or until a toothpick tests out clean.
- Cool on a wire rack at least 20 minutes before cutting.
- Serve warm or cool.