Prep. Preheat oven to 375 F, and line an 8x8 casserole dish with parchment paper.
Mix dry ingredients. Combine almond flour (1 Cup + 2 Tablespoons ), xanthan gum (1/2 teaspoon), baking soda (1/2 teaspoon), and salt (1/4 teaspoon) in a medium bowl and set aside.
Cream. Use an electric mixer to cream the butter (1/2 cup), erythritol (3/4 cup), and vanilla extract (1 teaspoon) together in a large bowl. Add eggs (2) and continue to mix until smooth.
Add flour combo. With the mixers on, add flour a little at a time.
Fold in the low carb chocolate chunks (1 cup).
Spread the dough into the prepared casserole dish, smoothing the top with your spatula. Place extra chocolate chunks on top.
Bake in the preheated oven for 18 minutes. Remove, cover the top of your casserole dish with foil, then continue to bake for an additional 20 minutes. Allow the bars to cool in the pan before slicing. Enjoy!