Preheat the oven to 350F.
Butter a 9″ springform pan. Place in parchment circle and butter it.
In microwave bowl, melt 1 2/3 cups chocolate chips and 3/4 cup butter.
Once smooth, whisk in the cocoa powder (sift it) and vanilla.
Let cool 10 minutes.
Meanwhile, beat eggs with sugar & salt on high for 6 minutes!!!
Fold in the chocolate mixture
Pour into pan and bake about 45 minutes.
The center will sink so after an hour, use a spatula to press the edges down to the level of the cake. Invert the torte on a plate and peel off the parchment.
Let cool.