Mix Wet Ingredients: In a large bowl, combine the peanut butter, granulated sugar, brown sugar, egg, and vanilla extract. Stir until well mixed.
Add Dry Ingredients: Sprinkle the baking soda and a pinch of salt over the mixture. Stir until the ingredients are fully combined.
Form the Cookies: Scoop out tablespoon-sized balls of dough and place them on the prepared baking sheet. Flatten each ball slightly with a fork, creating a crisscross pattern.
Optional Toppings: If desired, press a few chocolate chips or chopped peanuts into the top of each cookie before baking.
Bake the Cookies: Place the baking sheet in the preheated oven and bake for 10-12 minutes, or until the edges of the cookies are just starting to turn golden brown.
Cooling: Remove the cookies from the oven and let them cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
Serve and Enjoy: Once cooled, serve the cookies with a glass of milk or your favorite beverage.
