Preheat the oven to 350F (180C) degrees. Line baking sheets with parchment of silicone baking mats.
In a medium bowl, whisk together the flour, cinnamon, baking soda and salt. Set aside.
In a separate large bowl, beat together the butter and brown sugar until creamy (sugar granules are fine - but there shouldn't be lumps of sugar).
Beat the egg, additional egg yolk and vanilla extract into butter mixture.
Mix the dry ingredients into the butter mixture. I typically do this about 1/2 at a time, starting with the mixer on a low speed.
Form the dough into balls with about 1.5 tablespoons of dough each (I use a medium cookie scoop. Roll the dough into a ball, then roll each cookie dough ball in the granulated or raw sugar. To do this, I pour the sugar onto a small plate then roll the cookie dough ball in the sugar.
Place the cookie dough balls about 2 inches (5 cm) apart on the lined cookie sheets.
Bake 1 sheet at a time in the middle of the preheated oven. The cookies will bake for about 8-11 minutes, or until the tops look just set.
Cool the cookies on the cookie sheet for at least 10 minutes before transferring to a wire rack to continue cooling.