Chocolate Swiss Roll Yule Log Cake

That title is a mouthful, but not as good a mouthful as the cake!

Roll the cake as soon as it finishes baking. The cake will be HOT. I ended up using the parchment paper and rolling the ends like a small Tootsie Roll. It worked pretty good and saved my fingers.

The cake broke as I unrolled it. Apparently this is not uncommon. I believe I unrolled it too soon after it came out of the refrigerator. It wasn’t much of a problem as the frosting covered the breaks. I was going to make some marshmallow fluff to add to the filling, but forgot to make any this morning. Maybe next time.

I used grapes instead of cranberries for the decorations. (I am not a fan of cranberries.) I wish the long section of log were even longer. The jelly roll pan was a good size, and I think rolling a longer sheet of cake would be much more difficult, but it would have been nice for it to be bigger.

Most of the cake will be given away to family and neighbors, but we will be sure Manufacturing and QC have enough for proper assessment.

I ended up using half the suggested confectioner’s sugar for the frosting (topping.) QC and Manufacturing I checked it often during mixing, until we decided it was sweet enough, but not too sweet.

Chocolate Swiss Roll Cake

INGREDIENTS
Cake
• 4 large eggs, separated
• 1/3 cup (65g) granulated sugar
• 1/3 cup (65g) packed light or dark brown sugar
• 1 Tablespoon (15ml) strong brewed coffee
• 1/4 cup (60g) unsalted butter, melted (see note)
• 1 teaspoon pure vanilla extract
• 1/2 cup (62g) all-purpose flour
• 3 Tbl natural unsweetened cocoa powder, plus 2 Tbl (10g) for rolling*
• 1 teaspoon baking powder
• 1/4 teaspoon salt
Vanilla Whipped Cream
• 1 cup (240ml) cold heavy cream or heavy whipping cream
• 3 Tablespoons (38g) granulated sugar or confectioners’ sugar
• 1 teaspoon pure vanilla extract
• optional: 2 Tablespoons marshmallow creme (“Fluff”)
Chocolate Topping
• 3/4 cup butter
• 1 1/2 cups (125g) unsweetened cocoa powder
• 5 1/3 cups confectioners’ sugar 624g (1c confectioners sugar = 117g)
• 2/3 cup milk
• 1 teaspoon vanilla extract

METHOD

  1. Preheat oven to 350°F (177°C). Spray a 12×17 inch baking pan with nonstick spray or grease with butter, so the parchment paper sticks. Then line it with parchment paper so the cake seamlessly releases. Spray or grease the parchment paper too. We want an extremely nonstick surface for this cake roll.
  2. Make the cake: Using a hand mixer or a stand mixer fitted with whisk attachment, beat the egg whites and granulated sugar together in a medium bowl on high speed for 5 minutes or until stiff peaks form. Set aside. In another bowl, beat the egg yolks, brown sugar, and vanilla extract together until pale and creamy, about 2 minutes.
  3. Sift the flour, 3 Tablespoons cocoa powder, baking powder, and salt together into a large bowl bowl. Pour the melted butter, coffee, and egg yolk mixture over the dry ingredients. Beat everything together on medium speed until completely combined. Using a rubber spatula or wooden spoon, gently fold in the egg whites until completely combined. Avoid over-mixing and deflating those whites. Batter will be very light.
  4. Spread batter evenly into prepared pan. It will be a very thin layer. Shimmy the pan on the counter to smooth out the top. Bake for 10 minutes or until the top of the cake gently springs back when touched with your finger. Do NOT over-bake.
  5. Roll the cake: As the cake bakes, place a piece of parchment paper (larger than the cake) or a thin kitchen towel flat on the counter. Sprinkle with a light coating of cocoa powder. Once the cake comes out of the oven, immediately invert it onto the parchment/towel. Peel off the parchment paper that was on the bottom of the cake as it baked. Starting with the narrow end, slowly and gently roll the cake up with the parchment/towel. The cake will be warm. Allow the cake to cool completely rolled up in the parchment/towel. Place in the refrigerator to speed it up, about 2-3 hours.
  6. Remove the cake roll from the refrigerator and allow to sit on the counter for a few minutes to warm up as you prepare the whipped cream.
  7. Make the whipped cream: Using a hand mixer or a stand mixer fitted with a whisk attachment, whip the heavy cream, sugar, and vanilla extract on medium-high speed until medium to stiff peaks form, about 2-3 minutes. Then beat in the marshmallow creme, if using.
  8. Slowly and gently unroll the cake. Spread whipped cream evenly on top, leaving about a 1/2 inch border around the cake. Gently roll the cake back up, without the parchment/towel this time. Place on a wire rack set on a baking sheet (to catch the extra ganache). Set aside on the counter or in the refrigerator as you prepare the ganache.
  9. Make the topping: Cream butter until light and fluffy. Stir in the cocoa and confectioners’ sugar alternately with the milk and vanilla. Beat to a spreading consistency.
  10. Pipe in horizontal strips to resemble bark. Use an M1 star tip.
  11. Refrigerate for at least 30-60 minutes before slicing and serving.
  12. Cover leftover cake and store in the refrigerator for up to 3 days.
    NOTE:
    To make sugared cranberries and rosemary, add 1/2 cup of sugar and 1/2 cup of water to a boil over medium-high heat. Reduce heat and simmer for 5 minutes, until sugar has melted. Remove from heat and let cool for about 10 minutes. Spread 1/2 cup of sugar evenly on a shallow dish. Dip cranberries and rosemary springs to the sugar water, then roll in the sugar. Let dry before adding to the cake. I also used some of the clumps of sugar left behind to add “snow” to the cake.

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