Recipe you can make in one bowl in a small or big batch!
First, decide do I want a big batch in an 8" brownie pan or a small batch in a 9" bread loaf pan
Melt butter then add the brown sugar, salt, and vanilla
Next, add in the whole egg plus egg yolk; stir to combine
Sprinkle the flour and baking powder evenly on top and fold it together
Bake for 24-26 minutes at 350 degrees F