PREPARATION:
Preheat the convection air oven to 325 F (if you don’t have convection air oven raise the temperature to 350 F and you will have to rotate the pan half way through the baking time)
Butter and flour 8.5 x 4.5 x 3 (or 9 x 5 x 3 )inches loaf pan and line it with parchment paper.
Combine cake flour, baking powder and salt and sift it three times, set aside.
In a small sauce pan over medium heat brown 2.5 Tablespoons butter until it’s nice amber color, remove the foam and set aside to cool.
Whisk the egg with vanilla extract and set aside.
Mix the butter on medium speed until it’s creamy, slowly add sugar and continue beating until it’s creamy.
Add heavy cream and mascarpone, and beat on medium speed.
Turn mixer on low speed and gradually add dry ingredients alternately with eggs.
Add handful flour in chocolate chunks and toss them to cover evenly. Toss cranberries with a handful flour to cover them completely.
Add chocolate chunks in the batter and stir well, then gently stir in cranberries
Pour the batter into prepared loaf pan, smooth the top and gently tap the pan on working surface to remove the air bubbles.