4 large eggs
2 cups granulated sugar
2 1/4 cups all-purpose flour
2 1/4 tsp baking powder
1 tsp vanilla
1 1/4 cup milk
2/3 cup butter
Preheat oven to 350 degrees.
Grease a 9 x 13 x 2-inch pan and set aside.
In large mixer bowl, beat the eggs on high speed of mixer until thick, about 4 to 5 minutes. Gradually beat in the sugar until the mixture is light and fluffy.
In a small bowl, combine the baking powder with the flour; add to the egg mixture, along with the vanilla, until smooth.
Heat the milk and butter in a small saucepan over medium-low heat until the butter melts, stirring often. Add the milk mixture to the batter and blend together well. Pour the batter into the prepared baking pan and bake at 350 degrees for 30 to 35 minutes or until a wooden toothpick inserted in the center comes out clean.
Cool cake on a wire rack before cutting into squares to serve.