It did taste more like a brownie than cake, but it was still very good. My favorite thing is that it is adapted, ironically, from This recipe found on the King Arthur Flour website. And it is so easy that my eight-year-old did most of the work making it.
1 cup semisweet chocolate chips
2 sticks (1 cup) unsalted butter
1 1/2 cup sugar*
1/2 tsp. salt
2 tsp. finely ground coffee or espresso powder
1 Tbsp. vanilla
6 eggs (at room temperature)
1 cup cocoa powder
* Note: I am going to test this with just 1 cup sugar next time to lower the carb count even more, I'll let you know how that goes.