Crust:

2 cups walnuts

2 cups raisins

Filling (optional but recommended):

1/4 cup almond butter

1/4 cup melted coconut oil

1/4 cup maple syrup or 1/2 cup date paste
1/2 teaspoon cinnamon
Water, if needed

Topping: 
3 cups frozen berries (or however much you want)
1/2 cup goji berries

To make the crust: pulse the walnuts in your food processor until they become a rough flour. Add the raisins and process until it stick together, forming a rough dough. Press into a tart tin. Put in the fridge and let it set for about 2 hours (this is preferable but not absolutely necessary). 

To make the filling: blend all the ingredients until smooth. Spread gently into the bottom of your tart crust and then let it harden in the fridge for 30-60 minutes. Now top the tart off with all the berries, slice and serve!