This cookie got its name because a whole 18-ounce jar of peanut butter is used to make it. It is a creamy, moist cookie, and bound to be a favorite with anyone who makes them. Just don't over bake them!  Original recipe yield: 5 dozen.

INGREDIENTS:

• 1 cup butter, softened
• 1 cup white sugar
• 1 cup packed brown sugar
• 2 egg
• 1 egg yolk
• 2 teaspoons vanilla extract
• 1 (18 ounce) jar peanut butter
• 2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup chopped peanuts

DIRECTIONS:

1. In a large bowl, cream butter, white sugar, and brown sugar until smooth. Add the eggs, yolks, and vanilla; mix until fluffy. Stir in peanut butter. Sift together the flour, baking soda, and salt; stir into the peanut butter mixture. Finally, stir in the peanuts. Refrigerate the dough for at least 2 hours.
2. Preheat oven to 350 degrees F (175 degrees C). Lightly grease a cookie sheet.
3. Roll dough into walnut sized balls. Place on the prepared cookie sheet and flatten slightly with a fork. Bake for 12 to 15 minutes in the preheated oven. Cookies should look dry on top. Allow to cool for a few minutes on the cookie sheet before removing to cool completely on a rack. These cookies taste great when slightly undercooked.