Ingredients

  • 2 cups cake flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 113 cup sugar divided
  • 13 cup cocoa powder unsweetened
  • 1 teaspoon coffee instant, powder or espresso
  • 1/4 cup water
  • 1 each eggs
  • 1 each egg whites
  • 6 tablespoons butter unsalted, softened, cut up
  • 1 cup yogurt, plain plain, non-fat
  • 2 teaspoons vanilla extract

Method

  • Position rack in lower third of oven.
  • Preheat oven to 350F (180C).
  • Coat 8 or 10 cup fluted tube pan with spray.
  • Combine flour, baking powder, baking soda, and salt in bowl.
  • In another bowl, stir 13 cup sugar, cocoa, coffee, and water until smooth.
  • Whisk whole egg and egg white in cup; set aside.
  • Beat butter in mixer bowl until creamy, 1 minute.
  • Gradually add remaining 1 cup sugar and beat at high speed about 3 minutes.
  • Gradually add eggs; beat 2 minutes.
  • With mixer at low speed, add dry ingredients alternately with yogurt, beginning and ending with dry ingredients.
  • Beat until well blended.
  • Measure 1 1/2 cups batter and stir into cocoa mix.
  • Spoon about 3 quarters of the white batter evenly into bottom of tube pan.
  • Spoon on dollops of chocolate batter, then small dollops of white batter over the chocolate.
  • Draw small knife thru batters in zigzag motion to marbleize.
  • Be careful not to overblend.
  • Bake 45 to 50 minutes, until toothpick inserted in center of cake comes out clean.
  • Cool in pan 10 to 15 minutes.
  • Unmold cake; cool completely.