Start by preparing the crust. Combine all of the crust ingredients in a large bowl and mix them well.
Line a square baking pan with parchment paper and grease it with coconut oil.
Transfer the crust ingredients to the baking pan. Use a spoon or the flat bottom of a cup to press down on the crust to create a level bottom.
Bake the crust for 15-20 minutes at 350*F, until the edges of the crust are golden brown. Remove from the oven and allow it to cool at room temperature.
Take a fork and use it to poke holes all around the crust. Don't poke all the way to the bottom of the crust, just about halfway. This will help the crust and filling hold together better.
While the crust is cooling, prepare the lemon filling.
To a blender, combine the coconut cream, cashews, lemon juice and zest, maple, sugar, vanilla, cornstarch, salt, and turmeric. Blend until super smooth and creamy.
Transfer the lemon filling to a saucepan over medium heat. Stir continuously and cook for 4-6 minutes, until the mixture starts to significantly thicken and darken in color.
Once the lemon filling has thickened, pour it on top of the crust and level the top using a spatula.
Refrigerate the lemon bars overnight, or for at least 4-6 hours, until the filling hardens fully.
Once they are ready, slice the bars, dust some powdered sugar on top, and enjoy!