Line an 8" by 8" (20cm by 20cm) brownie pan with parchment paper.
To a heat-proof bowl, add 200g of the chocolate. Place it over a pot with slightly simmering water (double-boiler method). The water should not touch the bottom of the bowl.
Stir the chocolate with a rubber spatula while it’s melting. When the chocolate is at 113- 122F (45-50C), remove the bowl onto a kitchen towel.
Add the rest of the chocolate (100g) and stir until it’s melted and the mixture has cooled down to 88F (31C).
Add ⅔ of the hazelnuts as well as ⅔ of the cranberries and mix until fully coated with the chocolate.
Pour the mixture into the prepared dish and spread evenly using the spatula.
Sprinkle the rest of the nuts and cranberries on top. Additionally, sprinkle on roasted almond flakes.
Leave it to set at room temperature. Then, break into pieces or cut into squares and serve.