Gather your ingredients. Coarsely chop 340 g dark chocolate.
Chop 250 g walnuts or pecans.
The Fudge
Create a double boiler with a sauce pan filled with a bit of water over high heat. Place a heatproof mixing bowl on top of it and combine the chopped 340 g dark chocolate, 150 g condensed milk, 30 ml water and 1/4 tsp. salt.
Melt the mixture while stirring until smooth and fully combined.
Stir in the chopped 250 g walnuts or pecans until they are evenly distributed throughout the chocolate mixture.
The Cool
Line a baking pan with parchment paper (I use a square 8x8 inches), allowing the paper to hang over two sides.
Pour the chocolate and nut mixture into the prepared pan. Use a spatula to spread and press it evenly into the corners of the pan. Cover the fudge with a cloth carefully as to not touch the it directly. Allow the fudge to cool in the pan for about 2 hours at room temperature until set.
Once cooled, remove the fudge from the pan by lifting the edges of the parchment paper. Cut into squares.
The Serving
Serve your Nut and Dark Chocolate Fudge [Fudge aux noix et au chocolat noir]. You can also store in an airtight container in the refrigerator for up to 1 month or at room temperature for about 2 weeks.