Method

Chocolate Cookie Base

1. Add the Oreos into a food processor and blend to a fine crumb. If you want, you can remove the white filling and just use 120g of Oreo biscuits. 

2. Pour these into a medium bowl and set it to one side.

3. Add the butter into a small saucepan and place it on a low heat until melted.

4. Slowly pour about half of the butter mixture into the Oreos and stir to combine. Keep adding butter until the mixture resembles slightly wet sand. Oreos don’t require as much butter to pull together unlike a traditional biscuit base so add it slowly to avoid a very wet biscuit mixture. 

5. Take an 8×2.75” ring mold and place a piece of acetate along the inside. Acetate isn’t completely necessary as we are freezing the mousse. If you don’t have acetate you can simply heat the outside of the ring mold with a hair dryer/heat gun when you need to demold it. Acetate just makes this process much easier and you end up with a slightly cleaner finish. Place the ring onto a baking tray.

6. Pour the Oreo mixture into the base of the ring and use the back of a measuring cup or something flat, to smooth the base out so that it is even. Place the tray into the freezer. 

Milk Mixture

1. Add the milk and honey into a small saucepan, and place it over a medium-low heat until it is steaming – stirring occasionally. We are going to split this mixture between all three cheesecake bases. 

The process for making the layers is identical, so it is easiest to set up three measuring jugs at once, each with the chopped chocolate in, then pour in the weighed milk mixture. 

White Chocolate Layer

1. Into a tall jug, add the chopped chocolate, and pour over 75g of the hot milk mixture. The mixture needs to be hot so that the chocolate melts. Let it sit for 2 minutes before blending until smooth.

2. Add in the cream cheese, and the 75g of double/heavy cream. Blend again until smooth and there are no lumps of cream cheese. Cover the surface with clingfilm and refrigerate for 3 hours (or longer if needed).

Milk Chocolate Layer

1. Into a tall jug, add the chopped chocolate, and cocoa powder, and pour over 75g of the hot milk mixture. The mixture needs to be hot so that the chocolate melts. Let it sit for 2 minutes before blending until smooth.

2. Add in the cream cheese, and the 75g of double/heavy cream. Blend again until smooth and there are no lumps of cream cheese. Cover the surface with clingfilm and refrigerate for 3 hours (or longer if needed).

Dark Chocolate Layer

1. Into a tall jug, add the chopped chocolate, and pour over 75g of the hot milk mixture. The mixture needs to be hot so that the chocolate melts. Let it sit for 2 minutes before blending until smooth.

2. Add in the cream cheese, and the 75g of double/heavy cream. Blend again until smooth and there are no lumps of cream cheese. Cover the surface with clingfilm and refrigerate for 3 hours (or longer if needed).

Assembly

The assembly process is slightly tedious, as you have to wait for each layer to set before you can add the next one!

1. Remove the white chocolate layer from the fridge and place it into a medium bowl or the bowl of a stand mixer fitted with a whisk attachment. Whisk on a medium speed, until the mixture thickens and holds a medium peak. Set this to one side.

2. Into a bowl, add the remaining 60g of double/heavy cream and whisk until it holds a medium peak. Note – 60g can actually be quite tough to whisk if you are using an electric stand mixer so it is worth mixing 100g so that the whisk attachment can actually catch it, then just weigh the required 60g of cream.

3. Take the 60g of whipped cream, and fold this through the white chocolate layer, until smooth and combined. The final texture of the mixture should be thick, but still soft and slightly runny. We want a texture where we can pour the mousse into the tin and it will almost settle itself without too much assistance!

4. Remove the chilled chocolate base from the freezer and pour the white chocolate layer in. It should spread to the edges and settle, but if not just use a palette knife or a spoon to gently spread it, so that it is even. You can even give the tray a bit of a tap on the work surface to help it settle. Place the tray into the freezer for 30-60 minutes, or until the white chocolate layer feels firm enough to the touch to support another layer of mousse.

5. Repeat this exact same process with the milk chocolate and dark chocolate layers, freezing the mousse in between the milk and dark chocolate each layer. Note that because these layers have more cocoa solids, they will become thicker more quickly as you whisk them, so be careful not to over-whisk them and let them become too thick. 

6. Once you have added the dark chocolate layer, place the entire cheesecake into the freezer. If you need to serve this quickly, 2-3 hours in the freezer will be absolutely fine, but you can also freeze it overnight too.

7. When you are ready to serve, remove the cheesecake from the freezer, and lift it onto your serving dish. Carefully pull off the ring mold and then peel away the acetate, to reveal a smooth cheesecake. The cheesecake now needs 2 hours to defrost before you can eat it (maybe slightly less if you only freeze it for 2-3 hours). Or, you can defrost it for 2 hours then get it straight into the fridge.

8. Just a note that the longer you leave it at room temperature, you will begin to see the base ‘weep’. This is just because the sugar draws moisture from the cheesecake mixture. Nothing has gone wrong, it’s just a natural scientific occurrence of the ingredients of the hygroscopic properties of sugar!