Cookies Butterscotch Cookies

Ingredients

• 12 tbsp unsalted butter, divided
• 1 3/4 cups packed dark brown sugar
• 1/2 tsp salt
• 1 large egg
• 1 egg yolk
• 1 tbsp vanilla extract
• 2 1/2 cups all-purpose flour
• 1/2 tsp baking soda
• 1/4 tsp baking powder
• 1/4 cup packed dark brown sugar
• 2 tablespoons granulated sugar
• Sea Salt or Kosher