Step 1: Prepare the Mold
Use a silicone loaf pan (dimensions 8x3.5x2.5 inches / 20x9x6 cm) for the best results, as it makes unmolding easy.
If using a metal or glass pan, line it with parchment paper, ensuring the paper extends over the edges for easy lifting.
Step 2: Melt the Chocolate
Chop and Melt: Chop 2/3 of the chocolate (6.6 oz / 200g) into small pieces and melt it with the cacao butter in a double boiler (or a heatproof bowl over simmering water). Stir gently until smooth.
Temper the Chocolate: Remove from the heat and stir in the remaining 1/3 of the chocolate (3.4 oz / 100g) (chopped into larger pieces). This step tempers the chocolate, giving it a shiny finish and crisp snap once set.
Step 3: Optional Base Decoration
To make the bar extra festive, drizzle melted white chocolate at the bottom of the mold. Sprinkle with chopped pistachios or other nuts. Let this layer set for a few minutes in the fridge before adding the main chocolate layer.
Step 4: Create the Chocolate Shell
Pour half of the melted chocolate (about 5 oz / 150g) into the mold.
Tilt and rotate the mold to coat the bottom and sides (about 1 inch up the walls) evenly. Use a spatula to help spread if needed.
Place the mold in the fridge for 10 minutes to allow the chocolate shell to set.
Step 5: Prepare the Kataifi Layer
Toast the Kataifi:
If using raw kataifi (2.8 oz / 80g), cook it in a dry skillet over medium heat, stirring frequently, until golden brown and crisp (about 5-7 minutes).
If using pre-baked kataifi, toast it lightly in a skillet for extra crunch.
Combine the Filling:
In the same skillet, add the butter or ghee (1 tbsp / 0.5 oz / 14g), tahini (1 tbsp / 0.6 oz / 17g), and pistachio butter (8.8 oz / 250g / about 1 cup) to the toasted kataifi.
Stir gently over low heat for 2-3 minutes to create a cohesive mixture.
Taste and add sweetener (1-2 tbsp) if desired. Mix thoroughly and let cool slightly.
Step 6: Assemble the Bar
Spread the kataifi pistachio butter mixture evenly over the set chocolate layer in the mold. Press gently with the back of a spoon to ensure a firm, even layer.
Pour the remaining melted chocolate (about 5 oz / 150g) over the filling. Spread evenly to seal the bar completely. Smooth the top with a spatula for a professional finish.
Step 7: Chill and Garnish
Refrigerate the chocolate bar for 2 hours, or until fully set.
Once set, carefully remove the bar from the mold or lift it out using the parchment paper.
Drizzle with melted white chocolate, sprinkle with chopped pistachios, or add edible gold leaf for an elegant touch.