Grandma Pixie`s Peanut Butter Cookies

Grandma Pixie's Peanut Butter Cookies
(This recipe contains no flour of any kind.)
1 cup smooth peanut butter
1 cup sugar (plus extra sugar for rolling)
1 large egg
1tsp baking soda
Preheat oven to 350.
Line cookie sheet with parchment. Beat together peanut
butter and sugar until well combined.
Add the egg and the baking soda always sift baking
soda,always has lumps). Roll dough into approx. 2" balls.
Arrange at least 1" apart on cookie sheet. Press down
lightly with the bottom of a glass dipped in sugar.
Bake in batches in the middle of the oven for about 10
minutes until puffed and pale golden.
Cool briefly on cookie sheet and then transfer to a cooling
rack. How easy is that?