01 - Preheat oven to 350°F and line two large baking sheets with parchment paper.
02 - In a large mixing bowl, beat the softened butter, granulated sugar, and brown sugar until the mixture is light and fluffy.
03 - Incorporate the creamy peanut butter, then add eggs one at a time, beating thoroughly after each addition. Mix in vanilla extract.
04 - In a separate bowl, whisk together the oats, all-purpose flour, baking soda, and salt until well distributed.
05 - Gradually blend the dry ingredients into the creamed mixture, mixing just until combined. Avoid overbeating.
06 - Gently fold in the chocolate candies, semisweet chocolate chips, and crushed pretzels if using.
07 - Scoop rounded tablespoons of dough onto prepared baking sheets, spacing each portion two inches apart.
08 - Bake for 10 to 12 minutes, or until the edges are golden and centers remain slightly soft.
09 - Allow cookies to cool on baking sheets for five minutes, then transfer to wire racks to cool completely.