Chocolate brownies with mascarpone cheese and ganache

"Chocolate, nothing better than that! I love this Canadian recipe that includes lots of chocolate and mascarpone cheese. These two ingredients make the brownies heavenly delicious! Serve with whipped cream or vanilla ice creams. It is so simple that even the less advanced cooks can make it."

220g unsalted butter 

90g dark chocolate (60% cocoa solids; finely chopped)

1 cup sugar

1/2 cup cocoa powder

1/2 cup mascarpone cheese

3 eggs

2 teaspoons vanilla extract

1/2 cup plain flour

pinch of salt

Ganache

170g dark chocolate 

90 ml double cream

45 ml unsalted butter

Method
Preheat the oven to 160C. Place the butter and chocolate in a glass bowl and melt in a water bath. When melted, sift in the sugar and cocoa powder. Add mascarpone, eggs, salt, and vanilla extract and beat until smooth. Gently fold the flour.
Pour the mixture into the prepared square baking tray (greased with butter).  Bake for 45-50 minutes or until a wooden skewer (or chopstick) inserted into brownies comes out clean.
For the ganache, place the chocolate in a large mixing bowl. Bring the butter and cream just below boiling point and pour it over the chocolate.Let it stand for 30 seconds and then stir.
Spread the warm ganache over the cooled brownies. Allow to set before serving.