Preheat oven to 350° and lightly grease a 9x13 pan

Combine flour, baking powder and salt in a small bowl and set aside

In a large bowl, beat eggs on high speed for 5 minutes or until thickened and lemon-colored. Gradually add sugar, beating until mixture is light and fluffy.

Add vanilla and beat in.

Gradually add the dry ingredients and beat at low speed until smooth.

In a small saucepan, heat milk and butter just until butter is melted. Gradually add to batter; beating just until combined. The batter will be very thin.

Pour into prepared baking pan. Bake at 350° for 30-35 minutes or until a toothpick inserted near the center comes out clean.

Remove from oven and cool on a wire rack.

Serve with a dusting of confectionery sugar or with some berries and whipped cream