Delish Fluffy Chocolate Frosting

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This recipe came from the nut tree, a famous restaurant in vacaville, ca. While it is no more, my mom was able to smuggle this delicious recipe from them and, as far as we are concerned, there is no other chocolate frosting.

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Steps

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Beat egg whites well until they are fluffy and gradually add the powdered sugar.

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Combine the next 3 ingredients in separate bowl and fold carefully into the egg white mixture.

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Ingredients

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egg whites, powdered sugar, butter, cocoa, vanilla