Chocolate Torte with Dark Chocolate Frosting

We had some friends over for dinner who are gluten intolerant, so I decided to make a flourless chocolate cake. And since I'd just seen Laura Calder make one, I decided to try that one out. I don't know where the error was, if I put the oven too hot or if my oven, which has a random temperature generator, burned my cake, fifteen minutes before it was supposed to be done! I ended up cutting away the burned parts, and what was left was a wonderfully gooey chocolate pudding-like substance that I piled in large ramekins and topped with fresh whipped cream. What a save! But not an experience I'd like to repeat.

I tried this a second time, and it still started to burn about 15 minutes before the baking time was up, without the attractive crackling! I searched and most flourless chocolate cake recipes of this type give pretty much the same info.

THEN I was looking for an Easter chocolate cake to make for Isabelle and Ben and I found this recipe. It worked, it didn't burn, and it was delicious!

6 large eggs separated

1 cup (8oz/228gr) butter, cut into small pieces

7-9oz chocolate (70%), chopped

1 cup granulated white sugar, divided

1 tsp pure vanilla extract

1/4 tsp cream of tartar

Ganache:

7-8 oz chocolate (70%), chopped

3/4 cup heavy (whipping) cream

2 Tbsps (28gr) butter

1 Tbsps brandy (optional)

1. THIS IS BEST MADE THE DAY BEFORE
2. Lightly coat a 9 x 3 inch spring form pan with melted butter. Line bottom of pan with parchment paper.
3. Separate the eggs with the whites in one bowl and the yolks in another. Cover and bring to room temperature (about 30 minutes).
4. Meanwhile, melt the chocolate in a double boiler or bain marie. Once the chocolate has melted, slowly add small chunks of butter and mix to blend until it's uniform. Allow to cool a bit.
5. Beat the egg yolks and 1/2 cup sugar until thick and lemon-coloured. (The eggs should have tripled in volume, look thick and soft, and fall from the whisk/beater in a slow ribbon.) Beat in the vanilla extract and slowly beat in the slightly cooled melted chocolate mixture (adding it slowly increases the yolk temperature and avoid making scrambled eggs au chocolat).
6. Preheat oven to 350F and place oven rack on lowest level of the oven. 
7. In a clean bowl beat the egg whites until foamy. Add the cream of tartar and continue beating until soft peaks form. Gradually add the remaining 1/2 cup sugar and beat until stiff peaks form. Fold a small amount of whites into the egg yolk mixture to lighten the batter, then pour the batter into the remaining egg whites all in one go, then gently fold just until incorporated to keep as much volume in the whites as possible.
8. Pour the batter into the prepared pan, smoothing the top. Bake the cake for about 50 - 60 minutes or until a toothpick inserted in the centre comes out with a few moist crumbs - apparently you can use a cooking thermometer and, when the middle of the cake reaches 140F, it's done. (During baking the surface of the cake will form a crust which will collapse when the cake is removed from the oven.) Remove from oven and place on a wire rack to cool. The top of the cake will have become hard with a cracked surface and lots of crumbs. Cover with plastic wrap and place in the refrigerator for a few hours or up to a few days.
9. Chocolate Icing: Put the chopped chocolate in a bowl. Heat the cream and butter in a small saucepan over medium heat. Bring just to a boil, then pour the boiling cream over the chocolate and allow to stand for 5 minutes. Stir until smooth. If desired, add the liqueur.
10. Assemble: Remove torte from refrigerator and brush any loose crumbs from the cake. Place on a wire rack, top of the cake facing down (so now the bottom of the cake is facing up). Put the wire rack on a baking sheet. In this way if the chocolate ganache drips it will fall on the baking sheet, which makes clean up easier. Pour the ganache into the centre of the cake. Spread the ganache with a spatula, using big strokes to push the ganache over the sides of the cake, to create an even coating. If there are any bare spots on the sides of cake, cover with ganache. If there is leftover ganache, strain to remove crumbs, and with a hand mixer or whisk, beat until light and fluffy. Place in a piping bag, fitted with a Wilton 1M open star tip, and pipe rosettes on top of the cake. Refrigerate cake. I find this cake is best served the next day as it allows the flavours to blend. Cut the cake in small slices with a sharp knife, wiping off the knife after slicing each piece. If you have problems cutting the slices, warm the blade of the knife under hot running water before cutting each slice.