Coffee-banana cake with mascarpone and walnut dough

This coffee-banana cake with mascarpone uses the same walnut dough I keep using in all my cakes.

In order to get the recipe of the layers with walnut, click on the first recipe below:

Easy walnut cake with chocolate and rum

Walnut vanilla cake with platanos and blueberries

For the filling I proceeded as follows.

Ingredients

• 1 mascarpone (250 g)
• 20 g of sugar
• 1 full egg
• 2 ripe bananas
• 1 tsp of instant coffee
• whipped cream – 3 tbsp for the filling, the rest for decoration

Directions

1. Mix on low speed the mascarpone for few seconds.
2. Mix the egg white with half of the sugar and and the egg yolk with the rest of the sugar until foamy. You can add more sugar if you like it sweater.
3. Combine both egg mixtures with the mascarpone using circular, slow moves.
4. Add the whipped cream too.
5. Split the cream into two and mix on half with the coffee.
6. Now spread on the first layer half of the coffee cream.
7. On the second layer spread the two mashed bananas, which I previously let sit in a strainer to remove some of the moisture. I also added a layer of the normal cream here on top of the bananas.
8. On the last layer add the other half of the coffee cream.
9. Add the rest of the normal cream on top and the edges and decorate as you please.
10. Let it rest for min 12 hours, ideally 24 and serve.