Grease a tart tin with a removable base and set aside.
In a food processor, blend hazelnuts, salt, and cacao until crumbly.
Add dates one at a time along with vanilla extract. Blend until the mixture holds together.
Press the mixture firmly into the tart tin to form the crust. Freeze for 30 minutes.
For the jam, heat raspberries and water over low heat until softened.
Stir in chia seeds and cook for 5 minutes, stirring regularly. Mash slightly and cool.
Drain cashews and blend with maple syrup, raspberries, lemon juice, milk, and cacao butter until smooth and creamy.
Remove crust, spread the chia jam evenly, then pour the cream filling over it.
Smooth the top and refrigerate for at least 6 hours or overnight.
Before serving, decorate with fresh berries and chocolate.
This No Bake Raspberry Tart is best served chilled for the perfect texture.