Preheat oven to 350deg.

Beat eggs well.

Add brown sugar, vanilla & butter - beat well.

Add baking powder - beat well.

Add flour and mix thoroughly.

Pour into greased lasagna-sized pan & bake for 35 minutes.

Right before squares come out of oven, make glaze by mixing powdered sugar, orange peel & enough orange juice to make it syrupy.

Poke lots of holes in top of hot cake with a fork & pour glaze over top while cake is still hot.

Let cool in pan, then cut into squares and enjoy.