Americans apply the word "Torte" to any type of European-style cake that contains little or no flour, although sometimes containing ground nuts or breadcrumbs. In Europe, "Torte" or "Torta" is the name used for any single or multi-layered decorated cake containing rich ingredients.
I've got inspired to make this cake by the pictures posted on this site.. Plus the fact that I hadn't made any kind of cake witghout flour before certainly gave me no choice but giving it a try!!
Anyway, I ended up not using the recipe on the site above ..I,instead, tried another recipe found on joyofbaking without flour! And I was definitely pleased with an outcome that provided nice cracks on top!!
The ingredients (adapted and used 18 cm springform tin)
1/2 cup (114 grams) unsalted butter, cut into small pieces
150grams half semisweet and half 70% dark chocolate, cut into small pieces
3 large eggs, separated
70 grams caster sugar, divided
1/2 teaspoon pure vanilla extract
pinch of cream of tartar
icing to dust
As for method, I used exactly the same as shown on joybaking link above..please have a look there if you seek for the details..