- Preheat oven to 350 degrees. Butter a 10×14–inch square pan.
- In large mixing bowl whip together the butter, sugar, and powdered sugar until creamy. Add the eggs and continue mixing. While mixing add, a little at a time, the dry ingredients and the milk.
- Continue by alternating both ingredients until all ingredients are blended. Place in a buttered pan and bake for 25–30 minutes or until golden brown.
- Remove from oven and let cool.