Begin by melting 2 sticks of butter in a saucepan on medium heat.Bring the butter to a boil and stir constantly until the butter is no longer foamy and becomes an amber color.Remove from heat and allow it to cool for 20 minutes.Preheat the oven to 350 degrees and begin combining the dry ingredients.Add 2 ½ cups of all purpose flour1 teaspoon of baking sodaAnd 1 ½ teaspoon of sea salt to a bowlMix and set asideNow mix into the cooled butter1 ½ cups of brown sugar2 eggs 2 teaspoons of vanilla extractStir.Pour mixture into the dry ingredients,Mix.Add 1 cup chocolate chips1 cup butterscotch chips1 cup of crushed pretzelsCombine.Using a cookie scoop, drop dough on a cookie sheet lined with parchment paper.Bake for 10-12 minutes or until golden.After they come out of the oven, sprinkle flaky salt on each cookie.