Preheat your oven to 350°F (175°C). Grease or line a baking dish with parchment paper.
In a mixing bowl, cream together the sweetener and butter until smooth and creamy.
Add the egg, egg yolks, Zen Basil Seeds, lemon zest, lemon juice, and salt. Mix until well combined.
In a separate bowl, whisk together the almond flour and baking powder.
Gradually add the dry ingredients to the wet mixture, mixing until a dough forms.
Gently fold in the blueberries until evenly distributed throughout the dough.
Transfer the dough into the prepared baking dish and spread it out evenly.
Bake in the preheated oven for about 25-30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out clean.
Once the bars are out of the oven, optionally spread a thin layer of yogurt or cream cheese over the top of the bars. Then, sprinkle the lemon zest evenly over the yogurt or cream cheese while the bars are still warm.
Allow the cookie bars to cool completely in the baking dish before slicing and serving.
Servings: 6
Enjoy your delicious and nutritious blueberry cookie bars!