Echanted Forest Christmas Yule Log Cake Made with Japanese Cake Roll

Instructions

Totoro Cream Puff Instructions:

1. Make Totoro Cream Puffs using this recipe. Shells can be frozen in advance. Please see tutorial.

Meringue Mushroom Instructions:

1. Set egg whites out at room temperature.
2. When the egg whites comes to room temperature, whip on low speed. Once it begins to foam, add cream of tartar.
3. Increase speed to medium.
4. Continue whipping until egg whites become opaque and the whisks starts to leave tracks inside the whites.
5. Add the sugar a little at a time until fully incorporated.
6. Add vanilla extract and incorporate.
7. Continue to whip on med-high speed until stiff peaks are reached.**
8. Transfer half of the uncolored meringue to a piping bag fitted with a ½" round tip (ex. Atecco #805). Save a little to put in another piping bag with a smaller tip for piping the white dots onto the mushroom top.
9. Color the remainder of the meringue with red GEL food coloring (ex. Americolor's Super Red). Transfer to a piping bag fitted with a ½" round tip.
10. Place parchment paper or Silpat mats onto baking tray. If using paper, dab a bit of meringue onto the bottom of the paper and stick it to the pan to prevent it from shuffling around as you pipe.
11. Pre-heat oven to 200F.
12. With the white meringue, pipe the stems of the mushroom by holding the piping tip upright while applying even pressure. After reaching ¾" in height, release pressure and pull away quickly to stop piping. There will be a pointed peak on the stem, this can be cut away after baking.
13. With the red meringue, pipe the caps by allowing the meringue to flatten out into a 1" circle as you pipe. Release pressure and use a swirling motion to stop piping to prevent pointed tips.
14. Use the reserve white meringue in a bag with a small piping tip (ex. round #5) to pipe small white dots onto the mushroom caps.
15. Bake for 1 hour at 200F. Do not open the doors while baking.
16. Meringues are fully baked when they can be pulled cleanly away from the mat without sticking.
17. Turn off the oven. Leave meringues inside with the door ajar for at least 2 hours or overnight.
18. Once meringues have dried, cut off the peaks of the mushroom stems to create a flat surface for applying the mushroom cap.
19. Use some royal icing or melted chocolate to glue the two together.

Chocolate Chiffon Yule Log Cake Instructions:

1. Line a 8 X 12" rectangular cake pan with parchment paper.
2. In a small sauce pan, heat the milk and cocoa powder on medium heat until powder is fully dissolved. Do not let the milk come to a boil. Keep stirring continuously while breaking down big clumps of powder. Once fully dissolved, set chocolate milk mixture aside to cool.
3. Preheat oven to 325F.
4. In a large mixing bowl, add in sugar, baking soda, cream of tartar and salt. Sift in cake flour, stir to combine.
5. Create a well in the center. Inside it, add yolks, oil, vanilla extract and chocolate milk mixture.
6. Stir to combine until fully incorporated, do not over mix. Set this chocolate-flour mixture aside. 
7. In a clean and dry, non-plastic mixing bowl, whip egg whites on slow speed until frothy, add cream of tartar. (Note 1)
8. Increase speed to medium, once the whites become opaque and bubble size have tightened up, add sugar a little bit at a time.
9. Increase speed to med-high, whip until stiff peaks. You've now made a meringue. (Note 2)
10. Gently fold ⅓ of the meringue into the chocolate-flour mixture to get it moving. Once incorporated, fold in the rest of the meringue. Do not stir. Use batter immediately. 
11. Dab a bit of the batter onto the sides of the parchment paper to keep corners together. Dab a little more onto the paper and stick it to the pan to prevent the parchment paper from tipping over into the cake batter. 
12. Pour into lined cake pan from one spot, spread out the batter evenly with an angled spatula.
13. Tap the pan on the counter to release large air pockets.
14. Bake for 14-16 min. at 325F until a skewer pulls out clean and cake springs back in the center.
15. Let cool 5 min. in the pan before removing.
16. Place cooling rack over cake pan.
17. Flip cake over onto the rack, gently remove paper. 
18. The side facing up will eventually become the top of the cake roll. Let it sit on cooling rack for 5 min.
19. Place a piece of new parchment paper on top
20. Flip the cake over and start rolling, allowing the parchment paper to be in between the folds. This will prevent the cake from sticking to itself. It's important to roll the cake before it cools completely, otherwise, it will crack while rolling.
21. Let it cool in this wrapped condition while making the chocolate whipped cream.

Light and Airy Chocolate Whipped Cream Frosting Instructions:

1. Place a mixing bowl and beaters in the freezer to chill. It will help the cream whip better. 
2. Chop up chocolate into small pieces.
3. Place chocolate in a small pot along with the cream. 
4. Heat over medium heat until chocolate is fully melted. Do not bring to a boil. 
5. Let cool to room temperature then place in the fridge to chill. Check on it every 10-15 minutes and give it a gentle stir. It should be chilled before whipping but do not let it cool for too long as it will become too stiff to whip. 
6. Place the chocolate and cream mixture in the chilled mixing bowl, then beat on low speed and slowly increasing to medium. Stop when it start to get stiff. Do not over whip. 

Light Chantilly Cream Filling Instructions:

1. Chill mixing bowl and beaters in the freezer. This will help whipped cream whip up better.
2. Whip heavy cream on low speed and then increase to medium. Once the beaters leave tracks in the cream, add the powdered sugar.
3. Whip on med-high until stiff peaks are reached.** The cream will turn from glossy to matte. Do not over whip.

Assembly:

1. Very carefully unroll the cake.
2. Gently add one even layer of the Chantilly cream filling onto the unrolled cake. 
3. Very gently roll the cake back up using the parchment paper to help push the cake onto itself. This will help prevent cracking. To further prevent cracks, add more cream along the short edge that is folded first and do not try to roll the cake too tightly. Cut off the sides before placing on a presentation plate.
4. Cut off one end of the cake on a diagonal.
5. Place it onto the side of the cake roll.
6. Frost the cake with the chocolate whipped cream using an angled spatula.
7. Use a fork to create wood grain marks in the frosting.
8. Place meringue mushrooms and Totoro Cream puff on top before serving. These elements will absorb some of the moisture from the frosting so use sparingly. Place the rest of the meringues and cream puffs off onto the side for guests to enjoy.
9. Enjoy!