Soft & Chewy Oatmeal Chocolate Chip Cookies

and ½ cups (190g) all-purpose flour (spoon & leveled)

ground cinnamon (optional)

baking soda

salt

(2 sticks; 230g) unsalted butter, softened to room temperature

packed light or dark brown sugar

granulated sugar

large eggs, at room temperature

Tablespoon unsulphured or dark molasses1

pure vanilla extract

old-fashioned whole rolled oats

and 3/4 cups semi-sweet chocolate chips2