This is a recipe that I have shared before. These cookies are the best ever I had. I took a few peanut butter cookie recipes and picked out the ingredients that I thought would make the best peanut butter cookie ever and I did.
Ingredients:
½ cup shorting 
1 ½ cup peanut butter
½ cup white sugar
½ cup brown sugar
2 eggs
1 teaspoon vanilla extract
1 cup all-purpose flour
1 teaspoon baking powder
¼ teaspoon salt
Steps:
Preheat oven to 350 degrees F (175 degrees C)
In medium bowl, cream together the shorting, peanut butter, and sugar. Beat in the eggs one at a time, and then stir in the vanilla. Combine the flour, baking powder and salt. Slowing stir into peanut butter mixture making sure all ingredients are incorporated.
On cookie sheet drop rounded spoonful of peanut butter mixture
Bake for 8 to 10 minutes in preheated oven. Cookies will be soft and chewy if not over baked.
Allow cookies to cool on a cooling rack until completely cooled
