Here is a good recipe for lowcarb peanut butter cookies. I just made a batch and they are heavenly!!
Ingredients: One cup peanut butter (all natural, no sugar added peanut butter--I used Smucker's)
1/2 cup almond flour (lower in carbs than regular flour, I found this at the health food store)
1 teaspoon baking soda
1 teaspoon vanilla
Small amount of honey (the object is to use as little as possible, because the more you use, the more it will raise your insulin level causing fat to be stored. I try to use about 3 tablespoons or so)
A pinch of salt, but only if you are using no-salt peanut butter. Smucker's does have salt already so it is not needed.
One tablespoon milk and one tablespoon whole wheat flour if desired, just to make it a bit more dense.
Mix all ingredients and drop by rounded spoonfuls onto baking sheet. Use a fork to make cris-cross pattern on the top of each cookie. Bake at 325 degrees for about ten minutes. Let cool completely before eating, or they will be too crumbly. Store tightly covered.