In a large frying pan, melt the butter. Mix using a rubber spatula until the milk deposits separate and turn amber in color. Pour the butter into a bowl and cool until room temperature.
1 cup Plus 1 Tablespoon Unsalted butter
In a medium bowl, sift together the flour, baking soda, baking powder, salt, and cinnamon together. Set aside.
2 ½ cups All-purpose flour, ½ teaspoon Baking soda, ½ teaspoon Baking powder, 1 teaspoon Salt, 1 teaspoon Ground cinnamon
In a separate bowl, beat the melted butter, brown sugar, and sugar on high speed for 2 minutes. Add in the vanilla and eggs and mix on medium until combined.
1 cup Brown sugar, ½ cup White granulated sugar, 2 teaspoon Pure vanilla extract, 2 Large eggs
Add in the dry ingredients. Mix on low speed until combined. Add in the butterscotch chips and chocolate chips. Fold the dough until combined.
1 cup Butterscotch chips, 1 cup Semi-sweet chocolate chips
Preheat oven to 350°F. Line 2 cookie sheets with parchment paper. Let the dough sit for 10 minutes for the gluten to absorb into the dough. This helps with spreading.
Take a large cookie scoop (2 tablespoon or 2oz). Scoop a heaping amount of cookie dough. Place 6 per cookie sheet.
Bake for 13-15 minutes. The edges should be golden brown. Let it sit for 5 minutes on the tray before transferring to a cooling rack.