Preheat oven to 350F. Line a 9 inch by 9 inch baking pan with parchment paper.
In a large mixing bowl, add all crust ingredients. Mix with a spatula until everything is evenly mixed and smooth paste forms.
Press the crust into prepared baking pan. Use your hands to evenly spread the crust across the pan. Bake crust for about 15 minutes or until the surface is golden brown and edges are browned. The crust should look like it is done cooking.
While the crust is baking, make the filling. Add all filling ingredients into a mixing bowl. Whisk together until smooth. Pour the filling over the baked crust.
Place lemon bars back into the oven and bake about 25 minutes or until filling is set and toothpick inserted comes out clean. Let lemon bars cool for about 1 hour before cutting and serving. If desired, sprinkle top with powdered erythriterol before serving.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.