Preheat your oven to 350°F (175°C).

Grease a 9×9 inch baking pan or line with parchment paper.

Mix Dry Ingredients:

In a bowl, combine flour and baking powder. Set aside.

Cream Butter and Sugar:

In a separate bowl, beat the butter and sugar together until light and fluffy.

Add Eggs and Vanilla:

Beat in the eggs one at a time, then add vanilla extract.

Combine Dry and Wet Ingredients:

Gradually mix in the flour mixture until smooth.

Bake: