Preparation:
1. Sift the flour into a mixing bowl and add the butter, lemon zest, and salt. Rub the mixture until it resembles coarse crumbs, adding a few tablespoons of cold water to form a kneadable dough. Wrap in plastic food wrap or parchment paper and chill for 10 minutes.
2. Preheat the oven to 350°F/177°C/ Gas Mark 4. Line a baking sheet with parchment paper (or with a silicon baking mat).
3. Mix almond meal, flax seeds, vanilla, and Tulia Mighty Date Supersnack in a bowl and set aside.
4. Place the dough onto the prepared baking sheet and cover with another piece of parchment paper. Roll out into a large circle and spread the Mama Tulia Mighty Date Mix on top, leaving about 2 inches border around the edge. Spread the blueberries on top.
5. Roll up the edge of the dough to enclose the filling, pressing together the creases. Mix the melted vegan butter with the turmeric and brush the edges. If too soft, place in the freezer for 5 to10 minutes to firm up.
6. Bake for about 25 minutes or until the crust is golden brown. Let cool before cutting and serving.