01 - Preheat the oven to 350°F. Line two large baking sheets with parchment paper.
02 - In a large bowl, beat together butter, granulated sugar, and brown sugar with an electric mixer until light and fluffy.
03 - Mix in the creamy peanut butter. Add eggs one at a time, beating well after each addition. Stir in vanilla extract.
04 - In a separate bowl, whisk together oats, flour, baking soda, and salt.
05 - Gradually mix the dry ingredients into the wet mixture until just combined.
06 - Fold in chocolate candies, chocolate chips, and mini pretzels if using.
07 - Scoop rounded tablespoons of dough onto prepared baking sheets, spacing each two inches apart.
08 - Bake for 10 to 12 minutes until the edges are golden and centers remain soft.
09 - Allow cookies to cool on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely.