Thoroughly rinse the fresh blueberries, drain, and gently pat dry.
Preheat the oven to 400 degrees Fahrenheit. Lightly grease a 9x9 square baking pan with coconut oil or any plant-based butter.
In a small mixing bowl, add the blueberries, lemon juice, 1 tsp acai berry powder, lemon zest, and 2 drops lemon essential oil. Toss to combine. Then pour the blueberry mixture into the prepared baking pan.
Using a blender, add the eggs, sugar, vanilla bean paste, almond milk, gluten-free flour, kosher salt, 1 tsp acai berry powder, 2 drops lavender essential oil, and 2 drops lemon essential oil. Blend on low speed until batter is smooth, about 1 minute. Pour the batter over the blueberry mixture and gently shake to remove any air bubbles.
Bake for about 25 minutes. The clafoutis should puff up and the center is set when done.
Let cool until clafoutis deflates. Serve warm or at room temperature. Great with non-dairy whipped cream or with a non-dairy ice cream.