Lovely cake. The recipe is fundamentally correct but badly written. For anyone confused about the coffee, just divide it roughly into three: 1/3 for the batter, 1/3 to sprinkle over one of the cooked cakes before they are sandwiched together and 1/3 for the filling. I make the mix in a food processor, used 2 Nespresso pods to make up the coffee component and drizzled the top of the assembled cake with a coffee glaze. I live in a hot climate so it had to be made and eaten same day, but that wasn’t a problem!