In medium bowl, combine both flours, 1 tsp. baking powder, and pinch sea salt. Set aside.
Whisk egg whites until peaks form. Whisk in 1/3 cup brown sugar. Fold in flour and water, and combine until batter forms.
Grease and flour a tube pan. Pour in batter. Bake for 35 minutes before checking for doneness by inserting a wooden toothpick. If it comes out clean, it’s done! If not, keep checking every 5 minutes until it does.
Let cool a few minutes, and then top with strawberries, and your favorite cream/vanilla/agave-flavored topping for a real treat.