One of the pricier recipes in the book as it's very nut-heavy, but trust me, it is such a treat. The three layers melt together perfectly like little bites of paradise, with the ideal mix of biscuit, caramel and chocolate, just like a super-healthy, even-more-delicious version of millionaire's shortbread. Method: Start by making the base. Simply put the almonds and pecans in a food processor and blend for about one minute until a grainy flour forms, then add the dates and almond butter and blend again until the mix becomes nice and sticky. Transfer the mix to the bottom of a baking tin lined with baking parchment (mine is 31 x 21 x 6cm), pushing it down firmly with a spatula. Place the tray in the freezer for 20 minutes.

Next make the caramel layer. To do this simply put all the ingredients into the food processor with 120ml of water and blend until smooth and creamy, then pour on to the base layer and put the tray back into the freezer for 30-40 minutes, so it becomes firm enough to pour on the chocolate layer.

Finally, make the chocolate layer. Place the cacao butter in a saucepan and melt on a low heat with the almond butter. Once they’ve melted, pour into the food processor with the remaining ingredients and blend until smooth.

After the caramel has become solid, spread the chocolate layer on top, then place the tray back into the freezer and freeze for about 2 hours.

Store the whole sheet in the freezer. Take them out and leave at room temperature for 15-20 minutes, to let them warm up a little, then cut them into 16 slices to serve.