In a large bowl, use an electric mixer to cream together 1 cup softened unsalted butter, 1 cup packed brown sugar, and 1/2 cup granulated sugar until the mixture is light and fluffy, about 2-3 minutes.
Beat in 2 large eggs, one at a time, ensuring each is fully incorporated. Follow with 1 teaspoon vanilla extract.
In a separate bowl, whisk together 3 cups all-purpose flour, 1 teaspoon baking soda, and 1/2 teaspoon salt.
Gradually add the dry ingredients to the wet mixture, mixing on low speed or folding gently with a spatula until just combined.
Gently fold in 1 cup caramel bits, 1 cup crushed salted pretzels, and 1/2 cup chocolate chips.
Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper or silicone mats. Using a cookie scoop or spoon, drop rounded tablespoons of dough onto the sheets, spacing them about 2 inches apart.
Bake for 10-12 minutes or until the edges are golden and the centers look set but still soft. Remove from oven and immediately sprinkle the tops with a pinch of sea salt. Let cookies cool on the baking sheet for 5 minutes before transferring to a cooling rack.