Preheat the Oven : Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
Make the Dough: In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy. Add in the egg and vanilla extract, mixing until well combined.
Combine Dry Ingredients: In another bowl, whisk together the flour, baking soda, salt, and ground cinnamon.
Mix Wet and Dry Ingredients: Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
Prepare Cinnamon Sugar: In a small bowl, mix together the granulated sugar, brown sugar and ground cinnamon.
Shape the Cookies: Roll the dough into small balls (about 1 inch in diameter, use ice scooper if you prefer) and then roll each ball in the cinnamon sugar mixture, ensuring they are well coated.
Bake: Place the coated dough balls on the prepared baking sheet about 2 inches apart. Bake in the preheated oven for about 10-12 minutes or until the edges are slightly golden.
Cool: Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
Enjoy: Serve the cookies warm or store them in an airtight container for later.