01 - Preheat oven to 350°F and line two large baking sheets with parchment paper.
02 - In a large bowl, beat together softened butter, granulated sugar, and brown sugar until light and fluffy.
03 - Blend in creamy peanut butter, then add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
04 - In a separate bowl, whisk together oats, all-purpose flour, baking soda, and salt.
05 - Gradually add dry ingredients to the wet mixture, mixing until just combined.
06 - Gently fold in red, white, and blue chocolate candies, semisweet chocolate chips, and pretzels if using.
07 - Scoop heaping tablespoons of dough onto prepared baking sheets, spacing each portion two inches apart.
08 - Bake for 10 to 12 minutes, until cookie edges are golden but centers remain soft. Allow to cool on baking sheets for 5 minutes before transferring to a wire rack to cool completely.