Chocolate Chunk Snickers Bar Cookies

Preheat the oven to 350° F. Spray a 9×13 inch baking dish with nonstick baking spray.
In a large mixing bowl, using an electric mixer, beat together the butter and brown sugar until well combined; beat in the eggs, 1 at a time, then add the vanilla, beating once more.
In a small bowl, combine the flour, baking soda, and salt; add to the butter mixture and mix well once more. Using a large spatula or wooden spoon, fold in the chocolate chunks, Snickers, and half of the pretzels.
Press the dough into the prepared baking dish, then top with the remaining pretzels, using your fingertips to press them into the dough a bit. *If desired, sprinkle a few chocolate chunks over the top of the dough with the pretzels, as well.
Sprinkle a pinch of kosher salt over the bars. Bake the bars on the center oven rack for 18-22 minutes, until golden brown on top, and still a tiny bit doughy at the center. (If you're baking the cookie bars in a 7x11 pan, increase the baking time by 5 minutes.)
Remove the bars from the oven and let cool. Using a butter knife, loosen the cookie bars from the sides of the pan, then cut into serving squares as desired; store in an airtight container for up to 3 days or in the freezer for up to 3 months.