You can add brown sugar (1/2 cup; I use to do the recipe with the brown sugar but discovered it wasn’t vital when I accidentally left it out one time!), or just enjoy the sweetness in good peanut butter (I use Jif). I hope you enjoy the cookies. Sugar tends to make a cookie crispier, so the baking soda is a substitute for the crispiness (perhaps some food chemist can explain that one, I sure can’t).
Thanks !!!!!
(Jif is my very very favorite peanut butter.)
Can’t wait to try the recipe.