Preheat your oven to 350F.

In a mixing bowl, combine your almond flour, coffee grounds, baking soda, salt, and cinnamon.

In seperate containers or bowls, separate your egg whites and egg yolks.

In another mixing bowl, add your butter and beat it well. Add your erythritol to the butter and continue beating it until almost white in color.

Add your egg yolks to the butter and mix until smooth.

Add half of the mixed almond flour to the butter and mix it in. Add your vanilla extract and liquid stevia, then add the rest of your almond flour and mix well.

Beat your egg whites until stiff peaks form. Fold the egg whites into the cookie dough.

Divide your cookies on a cookie sheet, I made 10 large cookies. Bake them for 12-15 minutes.

Once finished, remove the cookies to a cooling rack for 10-15 minutes.