Cream the butter and sweetener until light and fluffy.
Beat in the cream cheese.
Add in the eggs.
Stir in the flours and xanthan gum (if using), then mix in the vanilla.
Chill dough for at least 4 hours .
Squeeze dough out of cookie press or roll out into a cookie log and slice.
Bake at 350F until cookies begin to brown (about 8-10 minutes for pressed cookie or 10-12 minutes for slices). Cook longer for crisper cookies.
Vanilla extract can be substituted in part or whole with other extracts like almond, lemon or orange to change the flavor.Note from reviewer: Decreased the butter by ⅓ and only used ⅔, ¾ cup of erythritol and half ½ cup of stevia. 1 tablespoon of Maple extract and a dash or 2 of cinnamon.Makes about 75 cookies, 4 cookies per serving