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White Chocolate Cake

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2 cups plus 1 tablespoon bleached flour
3 tablespoons cornstarch
1-1/4 cups granulated sugar
1 tablespoon baking powder
1/4 teaspoon salt
1/2 cup white chocolate chips
1/2 cup softened butter
1/2 cup milk
1/4 cup heavy cream
2 teaspoons vanilla
4 egg whites, unbeaten

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White Chocolate Cake

  • Serves 12
  • Medium

About This Recipe

I have always been on the search for the perfect white cake. It seems that most white cakes, which are made without egg yolks so they are really white, are a bit dry and tough. Egg yolks add fat and moisture to the cake batter, so a cake made without them will naturally be more dry.

I made one step in the right direction when I found Dinah Shore’s recipe for Pecan Cakes. That recipe, which is like nectar from the gods, is made by a white cake cut into squares, frosted on all sides with a fluffy frosting, then rolled in chopped pecans to coat. It’s not difficult to make, but it can take hours!

But when made on its own without that intense ratio of frosting to cake, the cake is still a little dry. Then I had a brainstorm.

Add ground white chocolate! When white chocolate is ground in the food processor so the particles are very fine, it will melt into the crumb of the cake and add fat and flavor. This type of ingredient is called a “finely divided solid” and it acts as an emulsifier (a fancy word that just means to make things smooth and blended). It doesn’t weigh the cake down, and doesn’t add much white chocolate flavor; it just adds the perfect amount of moisture.

Use my recipe for Old-Fashioned Frosting for this cake; it is a wonderful recipe. I first something like it a long time ago and was so intrigued. To make it, you cook flour and milk together in a saucepan until the mixture is thick. The flour paste is cooled, then beaten into shortening and butter and sugar. You have to beat and beat until the frosting is smooth, but your reward will be a velvety smooth and fluffy frosting; the perfect topping for the perfect white cake.




Preheat the oven to 350°F. Spray a 13” x 9” pan with nonstick baking spray containing flour and set aside.


Sift the flour and cornstarch together twice. Then combine this mixture with the baking powder and salt in a medium bowl.


Put the white chocolate chips in a food processor. Pulse, then process, until the chocolate is in very tiny pieces. Don’t go so far that the chocolate turns into a paste. If this happens, you have to start over. Set aside.


Now it’s time to put the batter together! In a large bowl, beat the butter until it is fluffy and light. Gradually add the sugar, beating constantly, until the mixture is light.


Now add the flour mixture in four parts, alternating with the milk mixture in three parts. That means you add ¼ of the flour and beat until the flour disappears. Then add the milk and beat until it disappears. Keep going until all of the flour mixture and milk mixture have been added.


Then beat in the unbeaten egg whites until combined.


Now sprinkle the white chocolate over the batter and fold it in with a spoon or spatula.


Spoon the batter (it will be thick) into the prepared cake pan and smooth it out. Bake for 28 to 33 minutes or until the cake is light golden brown, the edges just start to pull away from the pan, and a toothpick inserted in the center comes out clean.


Let the cake cool completely on a wire rack.


Top the cake with Old Fashioned Frosting.


Linda Larsen has a B.A. in Biology from St. Olaf College, and a B.S. in Food Science and Nutrition with High Distinction from the University of Minnesota. She has worked for the Pillsbury Company on the Bake-Off and in their test kitchens since 1988. Linda has written 37 cookbooks (and Medical Ethics for Dummies) since 2005.

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