Illustrated interpretation from the family cookbook.
Let’s make it
Preheat the oven to 350°F. Mix the flour, cocoa, baking powder and baking soda; set aside.
Beat the egg whites with the sugar. Add the yogurt, applesauce and vanilla and mix well.
Stir the dry ingredients into the wet just until combined. Spread into a greased 8-inch square pan at least 2 inches deep.
Bake for 30–35 minutes, until a toothpick in the center shows a few moist crumbs but no wet batter. Cool completely in the pan before cutting into 16 squares.
From the complete review edition, page 116. See the original cookbook page → Recipes have not been kitchen-tested for this edition. Original notes and editorial clarifications are preserved.