Chocolate-Flecked Cake Squares

This is a really different type of square  It has a much more cake-like texture than a typical square texture (though those can vary drastically), and is not overly sweet. The base is high, and very fluffy from the addition of beaten egg whites. The grated chocolate adds some pretty flecks and a little flavor, try using your favorite type - dark, milk, or semi-sweet. They definitely need a frosting, but use whatever type you wish!

Chocolate-Flecked Cake Squares
1/2 cup butter or hard margarine, softened
2/3 cup granulated (white) sugar
1 1/3 cups all-purpose (plain) flour
2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup milk
2 large egg whites, beaten until stiff
2 ounces, 60 grams, or 2 squares of grated chocolate

Preheat oven to 350◦F. Grease or line an 8x8 or 9x9 inch square pan.
In a medium bowl, cream the butter and sugar. Add 1/3 of the flour, the baking powder, and the salt. Stir in 1/2 of the milk. Add another 1/2 of the remaining flour, then the milk, then the remaining flour, mix well. Fold in beaten egg whites. Fold in chocolate. Spread batter evenly in prepared pan. Bake for about 35 minutes, until a toothpick inserted in the center comes out clean. Cool and frost as desired. 

I used a chocolate fudge ganache frosting on these, which was quite tasty. Any type would work - vanilla, caramel, cream cheese, or a chocolate drizzle.