Melt the dark chocolate gently in a heatproof bowl over simmering water (or in short microwave bursts). Set aside to cool.
200 grams Menier 70% Dark Chocolate
In a large bowl, use an electric handheld mixer to beat together the cream cheese, icing sugar, vanilla extract, and cocoa powder until smooth.
500 grams Philadelphia Full-fat Original Cream Cheese, 150 grams Icing sugar, 1 teaspoon Vanilla extract, 2 tablespoons Menier Cocoa Powder
In a separate bowl, whisk the double cream to soft peaks. This will take roughly 5 minutes on high speed. Be careful not to overwhisk the cream, it should look like soft, pillowy clouds.
300 milliliters Double cream
Working quickly, pour the melted chocolate into the cream cheese mixture and mix until fully incorporated. The mixture will be thick! Sometimes the cold temperature of the cream cheese can cause the chocolate to firm up, creating specks of chocolate in the mixture. Don't panic, this is totally normal and actually adds a lovely texture throughout the cheesecake filling.
Fold in the whipped cream with a spatula until smooth, fluffy and combined.
Spoon the cheesecake mixture over the chilled base in two stages and press it down with the back of a spoon. Make sure you compress the mixture into the sides of the tin so it's compact, then smooth out the top. Place in the fridge to set for at least 4 hours, or overnight for the best results.