1/2 c shortening
1/2 c butter, softened
1 cup sugar
1 cup brown sugar
2 large eggs
2 tsp vanilla
2 tsp baking soda
1/2 tsp salt
1 cup creamy or crunchy peanut butter
3 c unbleached flour
Preheat oven to 350 degrees. Lightly grease two baking sheets or line with Silpat or parchment.
In a mixing bowl, cream together the shortening and the butter. Add sugars and beat until fluffy. Add the eggs, vanilla, baking soda, salt, and peanut butter. Mix until combined. Add flour, stirring to combine.
Drop the dough by tablespoonfuls onto the baking sheets, leaving space between each cookie. Press down each cookie with a fork to make a crisscross pattern, pressing slightly each time. Bake the cookies for 10-12 minutes, or until cookies are lightly browned.
Remove from the oven and transfer to a wire rack to cool.
Adapted from one of my favorite cookbooks : King Arthur Flour Cookie Campanion