Walnut Cake with Mocha Filling

Prepare the dough: In a medium bowl, combine the flour, salt, and baking powder

Mix in the butter with your fingers until it forms a crumbly mixture

Add the cold water gradually and mix with a fork until it forms a smooth batter

Form the dough into a ball and shape it into a disk about 15 cm in diameter

Wrap it in plastic wrap and refrigerate for at least 15 minutes. Reserve

Prepare the filling: In a medium saucepan, combine all the ingredients and cook over medium heat, stirring constantly with a wooden spoon, until the mixture comes away from the sides of the pan (about 10 minutes)

Remove from heat and let it cool to room temperature for about 30 minutes

Preheat your oven to 180°C (medium)

Roll out the reserved dough on a floured surface to a thickness of about 1/8 inch

Place it in a 35 cm diameter cake pan with the bottom removed, forming a circle about 30 cm in diameter

Spread the filling over the dough, leaving a 5 cm border around the edges

Fold the dough over the filling, but leave the center open

Brush the edges of the dough with the lightly beaten egg

Bake in a preheated oven at 180°C for about 30 minutes or until golden brown

Transfer to a serving plate and serve immediately

690 calories per slice