Add pistachios, walnuts and coconut in a food processor and pulse to form an even crumb. Add dates and pulse until you have a sticky dough. Press base into lined pan and place into the freezer while you make the filling.
Filling Ingredients and Chia Jam Topping
Rinse the cashews well and drain. Place into a high speed blender with coconut milk, coconut yoghurt and maple syrup. Blend until smooth and pour onto the base. Place in freezer for a few hours.
To make the dragon fruit jam, place fruit and maple syrup into a small saucepan, on low, gently heat until dragon fruit has thawed. Mash the fruit with the back of a spatula. Add chia seeds, stir, pour into a jar and refrigerate for a few hours until it thickens.
Take out the cake and place a thick layer of jam on top. Place in the freezer for a few hours or overnight. Before serving, take it out of the freezer and let it sit for a few minutes before slicing.