Half an egg just means to mix up and egg and use half in the recipe
We made a half of the recipe and also put half the sugar in.
Preheat oven to 350F
Measure 1/2 cup peanut butter
Add peanut butter and half an egg into a bowl
Add sugar, vanilla and baking soda
Blend together using a hand mixer
Spoon back into the bottom of the bowl
Spoon onto a parchment paper lined baking sheet. This batch made 7 cookies
Bake for 18 minutes
Finished cookies! ENJOY!