That's right...only three ingredients, and no added butter or fats (other then the peanut butter, which I like to pretend has no fats). I do use my homemade peanut butter so this is truly only 3 ingredients, no preservatives or added oils.
1 cup peanut butter
1 cup sugar
(oh yeah, and parchment paper is useful but not strictly necessary)
Add all three ingredients in a bowl and mix until thoroughly combined:
Line your cookie sheet with parchment paper and place 1 inch balls of dough about 1-2 inches apart:
Use a fork to make a cris-cross pattern on your cookies. I found it very useful to have "helpers" with this part, and the girls had a blast squishing the cookies.
Bake for 10-12 minutes at 350 degrees. And boom! You have (sort of) healthy cookies that are also gluten free!
Make sure you let them cool before you remove them from the cookie sheet! They will fall apart until you let them congeal, plus they're really hot! I "forgot" this step and burned the top of my mouth biting into an ooey gooey, falling apart cookie.
It was so worth it.