Preheat your oven to 350°F and line two baking sheets with parchment paper.
Take your flour, salt and baking soda and whisk in a bowl and set aside
With your stand mixer or hand held take your melted butter and both sugars and mix for about 5 mins. until light in colour and fluffy.
Add eggs and vanilla and mix for another minute.
Now take your pretzel pieces and mix in for a few seconds to incorporate. Then with mixer on low speed add your dry ingredients and mix for about 10 seconds.
Finally add in your chocolate and peanut butter chips and mix for another 20 seconds making sure not to over mix at this point.
With a large ice cream scoop scoop out cookie dough onto prepared baking sheets and at this point you can top with extra chocolate chips or peanut butter chips.
Bake for 10-12 mins until golden edge, remember they continue to bake as they cool so don't leave longer then 12 mins in oven.
Remove from oven let them cool in pan for 5 mins, and if you like you can add more pretzel pieces on top of more chips.Transfer to cooling rack and let cool for another 15 mins. before digging in.