01 - In a heatproof bowl set over a saucepan of simmering water, gently melt the premium dark chocolate, milk chocolate, and unsalted butter, stirring until glossy and smooth. Remove from heat and blend in heavy cream until fully incorporated.
02 - Line an 8-inch square pan with parchment paper, ensuring the edges hang over for easy removal.
03 - Pour the melted chocolate mixture into the prepared pan and spread evenly with a spatula.
04 - Distribute the crushed pistachios, digestive biscuits, and toasted coconut flakes over the chocolate base. Use a spatula to gently press and embed the toppings.
05 - Combine pitted Medjool dates, water, cardamom, and sea salt in a small saucepan. Cook over low heat, stirring, until dates soften and water is nearly absorbed, about 5 minutes. Puree the mixture with a blender or immersion blender until smooth.
06 - Spoon or swirl the spiced date caramel over the crunchy chocolate base for an even layer.
07 - Refrigerate until thoroughly set, a minimum of 2 hours.
08 - Lift from pan, cut into bars or squares, and embellish with edible gold leaf, dried rose petals, and additional chopped pistachios.