Preheat the oven to 350 degrees Fahrenheit. Line two baking sheets with parchment paper or a silicone liner.
Cream together the butter and sugars in a large bowl for about 3 minutes. 1 cup unsalted butter, 1 cup brown sugar, 1/2 cup granulated sugar
Add in the eggs and vanilla and stir into the creamed butter. 2 large eggs, 2 tsp vanilla extract,
Add the dry ingredients (flour, baking soda, and salt) to the wet ingredients and stir everything together till combined, and you have a nice soft cookie dough.2 3/4 cups all purpose flour, 1 tsp baking soda, 1 tsp salt
Add in the chocolate chips, and pretzel pieces (reserving a few for adding after the cookies bake) and stir them until mixed evenly into the batter. 1 1/2 cups chocolate chips, 1 cup chopped pretzels
Scoop the cookie dough into large 2 TBS sized cookie balls. Roll them into smooth balls. Place cookie balls onto the prepared cookie sheet about 2-3 inches apart to allow for spread.
Bake the cookies for 9 to 11 minutes, or until the edges just start to turn golden, and the tops are barely set.
Remove the pan from the oven. Add a few extra chocolate chips and pretzel pieces on top of the cookies right out of the oven. Leave the cookies on the baking sheet for 5 to 10 minutes to cool, as they keep baking.
Transfer the cookies to a cooling rack to cool completely, or let them cool another 5 to 10 minutes, then enjoy.