Preheat your oven to 350 F, and prepare large rimmed baking sheets with parchment paper.
Add the flour, baking soda, baking powder, cinnamon, and salt into a medium or large mixing bowl and whisk to evenly combine.
2½ cup Flour, 1 teaspoon Baking soda, 1 teaspoon Baking powder, ¾ teaspoon Salt, ¼ teaspoon Cinnamon
In another large mixing bowl, add the melted butter, brown sugar, and granulated sugar.
1 cup Butter, 1 cup Brown sugar, ⅔ cup Sugar
Cream the butter and sugars for 3 minutes, or until light and thick.
Mix in the eggs and the vanilla, combining well.
2 large Egg, 2 Vanilla extract
Mix ½ of the dry ingredients into the creamed butter and sugar mixture on low until most is incorporated, then add in the second ½ of the flour and mix until you only see slight streaks of the flour.
Stir in the chocolate chips, butterscotch chips, and optional nuts. Mix until evenly distributed in the dough.
12 oz Chocolate chips, 12 oz Butterscotch chips, ¾ cup Pecans
Chill the cookie dough for 30 minutes.