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Mocha Buttercream Yule Log

Total Time

Prep: 30 min. Bake: 15 min. + cooling


12 servings

It's become a tradition to prepare this yule log for our holiday gatherings. The filling recipe came from my aunt, and the buttercream frosting was my creation. —Rosie Flanagan, Buchanan, Michigan
Mocha Buttercream Yule Log Recipe photo by Taste of Home


  • 5 large eggs, separated, room temperature
  • 2/3 cup sugar
  • 2 tablespoons all-purpose flour
  • 3 tablespoons baking cocoa
  • 2 tablespoons plus 1-1/2 teaspoons all-purpose flour
  • 1/2 cup whole milk
  • 1/2 cup sugar
  • 1/2 cup butter, softened
  • 1/2 teaspoon vanilla extract
  • 1/2 cup chopped walnuts, optional
  • 1 cup butter, softened
  • 1/2 cup confectioners' sugar
  • 1 tablespoon baking cocoa
  • 1 teaspoon strong brewed coffee
  • Confectioners' sugar, optional
  • Chopped walnuts, optional


  1. Preheat oven to 350°. In a large bowl, beat egg yolks at high speed until light and fluffy, 4-6 minutes. Gradually add sugar, beating until mixture is thick and light-colored. Add flour and cocoa, beating on low speed. In another bowl, beat egg whites until soft peaks form; fold into batter. Mix until no streaks of white remain.
  2. Grease a 15x10x1-in. baking pan; line with waxed paper, and grease and flour paper. Spread batter evenly in pan. Bake until cake springs back when touched lightly, 12-15 minutes. Cool 5 minutes. Invert onto a tea towel dusted with cocoa. Gently peel off paper. Roll up cake in the towel jelly-roll style, starting with a short side. Cool completely on a wire rack.
  3. For filling, combine flour and milk in a saucepan. Cook over low heat; stirring until thick. Cool. In a bowl, cream sugar, butter and vanilla. Add flour mixture; beat until fluffy. Fold in walnuts if desired. Unroll cake; spread filling over cake to within 1/2 in. of edges. Roll up again, without towel; trim ends. Place on a platter, seam side down.
  4. For frosting, in a small bowl, beat butter until fluffy. Beat in sugar, cocoa and coffee. Spread over cake. Sprinkle with confectioners' sugar and walnuts if desired.

Nutrition Facts

1 piece: 351 calories, 26g fat (15g saturated fat), 140mg cholesterol, 217mg sodium, 29g carbohydrate (25g sugars, 0 fiber), 4g protein.

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