prepare cake mix according to package directions adding instant espresso powder to the mix. Divide between two 9 in round pans that have been greased and floured and bake until toothpick inserted in center of cake comes out clean.
cool cakes in pan on wire rack for ten minutes. Flip out onto wire racks and let cool completely. Slice cakes into two layer each for a total of four layers.
In a measuring cup combine cooled coffee and 1 tbsp of coffee liqueur and set aside.
For filling, combine mascarpone cheese, 1/2 cup of powdered sugar (sifted), tbsp of coffee liqueur and tbsp of ameretto/ Beat on low until smooth, cover with plastic and set aside.
For frosting beat 2 cups of heavy cream, 1/4 cup powdered sugar, 1 tbsp of coffee liqueur and 1 tbsp of ameretto until stiff peaks form. Fold 1/2 cup of cream mixture into filling.
To assemble cake place bottom layer on cake board or plate and brush with the coffee and liqueur mixture from measuring cup, spread with 1/3 of your filling. Repeat this step for the next two layers. Top with final layer and frost with whipped cream mixture. I garnished my cake with fresh raspberries and cocoa powder, you could also use chocolate curls, candied coffee beans.. etc.
refrigerate cake for at least two hours before serving, gets better if it sits overnight.