PREP: Position a rack in the center of the oven and preheat the oven to 375ºF. Line a baking sheet with parchment paper; set aside.
2.
DRY INGREDIENTS: in a mixing bowl, combine the dry ingredients: flour, baking soda/powder, salt, and cinnamon; set aside.
WET INGREDIENTS: In a large mixing bowl, add melted butter and brown/ granulated sugar and mix with an electric mixer (or in a stand mixer) for 4 minutes or until the butter is whipped and fluffy. Add the butter extract, vanilla, and egg + yolk and mix until smooth.
MIX: Add the dry ingredients to the wet ingredients using a rubber spatula, and mix until halfway combined. Add the chips and pecans and continue mixing until no flour pockets remain.
SCOOP: out two tablespoons worth of cookie dough using a cookie scoop and place it roughly 1½ inches apart on the cookie sheet.
BAKE: the cookies for 8-10 minutes or until the edges are golden and the center looks slightly underdone! Don’t worry, they’ll cook through as they cool.
SPRINKLE: with flakey salt and let cool for a couple of minutes before transferring to a wire rack.