Don’t let the peanuts burn! If a few nuts are getting too dark or the mixture starts to smoke or scorch, remove the pan from the heat for a minute to cool down the pan.
Regular cinnamon, also called Ceylon cinnamon, has a subtler flavor than Saigon cinnamon, which is similar-tasting but stronger. If you’re using regular cinnamon, you may want to increase the amount you use to get the flavor of Saigon cinnamon.
If cinnamon is not your favorite, swap in another spice. Nutmeg, allspice and cloves are all tasty additions to sugary nuts.