a 14” x 4.5” rectangular fluted tart pan with a removable bottom
In a small saucepan over medium heat, combine blueberries, honey, lemon zest and juice, and cardamom and bring to a boil. Let the mixture bubble for 5 minutes, stirring occasionally with a rubber spatula and swirling the pan around. Once it is thick and syrupy and the blueberries have broken down, remove from the heat and allow it to cool to room temperature.
In a medium mixing bowl, combine the labneh with half of the blueberry syrup. Fold together until combined but still a little streaky.
Spread the labneh mixture evenly in the oat tart shell, then drizzle on remaining syrup and swirl. Top with chopped toasted cashews, fresh blueberries and a drizzle of honey. Allow the tart to set in the refrigerator overnight or at least 4 hours. Remove the crust from the pan by pressing up the bottom, then transfer to a cutting board. Slice into 8 pieces and serve.
Toast the oats in a medium, non-stick skillet over medium heat, stirring occasionally until the oats are light golden brown, 8 to 10 minutes.
Add the toasted oats to a food processor along with the cashews, hemp seeds, brown sugar and salt and blend until very fine, like the consistency of fine breadcrumbs. Add the coconut oil, honey, and vanilla and blend until combined and the mixture starts to form a dough. It’ll still look crumbly in the food processor but if you squeeze some in your hand it should stick together. Press into a 14” x 4.5” rectangular fluted tart pan with a removable bottom, spreading it out firmly and evenly. Refrigerate until firm and cold to the touch, at least 1 hour.
In a mixing bowl, combine yogurt, salt and lemon juice until fully incorporated.
Line a strainer or colander with 2 or 3 layers of cheesecloth and place over a bowl or other receptacle that can catch the liquid.
Transfer yogurt mixture to the strainer and twist up the ends of the cheesecloth. Place another bowl on top to weigh down the mixture and then refrigerate overnight, allowing the liquid to drain.
You can use fresh or frozen blueberries for the filling, but fresh blueberries will make this tart a little heavier.