Turn oven on to 350 and prepare 3 baking sheets with parchment paper.
in a mixing bowl, combine flour, baking soda and 1 tsp of sea salt. Set aside.
In the bowl of a stand mixer with the paddle attachment, beat room temperature butter for one minute. Add sugars and cream together for 1-2 minutes, until the butter and sugar are light and fluffy.
Add vanilla and eggs one at a time beating until fully combined.
When the eggs and vanilla are fully combined with the butter and sugar turn off the mixer and add 1/2 of the dry ingredients. Mix well. When the flour mixture is integrated, add the remaining flour mixture and beat until the dough comes together.
Turn the mixer to low and pour your bag of butterscotch chips in the dough. Let it mix for another 10-20 seconds.
Using a large cookie scoop, make 8 mounds of dough on 3 cookie sheets. Top with a pinch of sea salt flakes.
Bake one sheet at a time for 12 minutes each. Turning 1/2 way through the baking time.
Let cookies cool for about 5 minutes on the baking sheet before transferring them to a wire rack to cool completely.